Hey everyone, this will be a two-shot I needed to do. Yes needed. I desperately needed to have some angst right now. None of my stories at this moment have any, so I decided to do this, song story. Bruno Mars, When I Was Your Man.

Enjoy

Derek Morgan prided himself on his astuteness and fearlessness; he was one of the top profilers in the whole Federal Bureau of Investigation. But alas, he couldn't profile himself. Now, here he was, sitting in the corner of the room at his boss's wedding. Watching his ex-girlfriend, spin around the floor with her new boyfriend, Marco. Morgan hated everything about Marco. He was nowhere near good enough for her.

Only he himself was. But here Marco was dancing with his Baby Girl to the song that used to be theirs as Morgan downed another beer.

"Hey Morgan, great wedding, right?" Reid asked, walking up to him, holding out a new beer for him to take.

"I guess," Derek commented, never taking his eyes off of Penelope.

"Penelope looks beautiful tonight, doesn't she? She moves so gracefully on the dance floor with Marco." Reid said, handing him the cold drink.

When our friends talk about you

All it does is just tare me down

'Cause my heart breaks a little when I hear your name

Morgan cringed hearing her name coming out of Reid's mouth. He couldn't blame the kid though; Reid didn't understand that every time he mentioned her, Derek would die a little more inside.

"Yeah, Kid. She looks stunning," Morgan said dryly, still refusing to take his eyes off of her.

"Why'd you decided to forgo the bachelor party for Hotch last night?" Reid asked, confused about the social custom. He thought friends always went to their other friends' send offs. "I thought you would have, as you like to say, get your grove thang on?"

"I had paperwork I needed to complete." He shifted his stare to Reid. "We are going to be short handed for the next two weeks while Emily and Hotch are on their honeymoon. So I needed to get ahead of the curve," Morgan explained. In reality, he knew the reason why he didn't go and it had nothing to do with paperwork. He knew Marco would be there, and he didn't want to hear how perfect his life had become now that he had a strong fulfilling woman like Penelope by his side.

"It was fun," Reid smirked, remembering last night "You should have come. We ended up running into the ladies at one of the bars. When we realized they were there, Marco had the grand idea to run to the corner store and get them flowers and surprise them on the dace floor. It actually was very endearing,"

too young, too dumb to realize

that I should have bought you flowers and held your hand

should've gave you all my hours

when I had the chance

take you to every party

'cause all you ever wanted to do was dance

Morgan's heart broke even more hearing of their escapades last night. He thought his heart was already broken beyond belief. But then again, here he was, his heart breaking even more for the umpteenth time after she decided to leave him- leave him to fend off all the demons on his own, leave him to his own destruction.

He downed the fresh beer Reid handed him and made his way onto the dace floor, to hopefully cut in and dance with his soul mate again.

Now my baby's dancing

But she's dancing with another man

He made his way over to the happy couple and proceeded to move into place, "Can I cut in?" he asked hopeful that he wouldn't be dismissed outright.

Penelope looked him up and down, and then back to Marco. After receiving a silent nod from Marco, she effortlessly moved into Morgan's willing arms.

"You look beautiful tonight, Baby Girl," he said low, while they swayed to the music.

"Thank you, Agent Morgan," she remarked, coldly.

"The dance lessons are paying off. You look like you belong out here on the dance floor." He commented.

"Well, thank you. The dance lessons have been paying off. I'm grateful Marco made time for me, so he'd be able to take me every week," she stated, knowing it was a low blow, but Morgan had promised her for months to take her for dance lessons. But he always had something else better to do, from paperwork, to repairs on one of his properties, anything that didn't involve her.

My pride, my ego, my needs, and my selfish ways

Caused a good strong woman like you to walk out my life

Morgan tried to swallow past the lump in his throat. He'd never be able to clean up this mess he had made. He should have taken her to the classes, should have given her all his free hours, but he didn't and now he was paying for it.

He closed his eyes basking in the feeling of his arms once again wrapped around her, feeling her warmth mingle with his own. He'd give anything to turn back time, make everything right again. He'd buy her flowers everyday just because, take her anywhere she wanted to go, proclaim his love for her off the highest rooftop he could find.

"Hey Puddin' Pop, wanna get something to eat?" Marco asked, coming up to them. Morgan stiffened on the dance floor; knowing his time holding the love of his life was coming to an end once again.

"I am getting a little hungry," Penelope responded, walking out of Morgan's arms, reaching for Marco's outreached hand. She turned back to look at Derek. "Thanks for the dance, Agent Morgan."

There he stood in the middle of the dance floor, his heart breaking the impossible last bit more, as he watched her leave hand in hand with Marco to the table. He tried to move his feet from the spot he was in, but they wouldn't budge. They were frozen in place, just like the night she gathered everything and walked out the door.

"Baby, where are you going?" he asked as he watched Penelope throw items that belonged to her into a duffle bag.

She didn't answer him, instead continued to throw anything she could find of hers into the bag.

"Baby Girl, talk to me? What's going on?" he pleaded with her, reaching out for her arm to stop her hasty movements.

Penelope finally turned to him, and for the first time in months he looked at her- really looked at her. What he saw nearly killed him. She was broken; it was written all over her face.

"I'm leaving, Derek." She stated, looking into his eyes.

"What do you mean leaving?" he said, starting to panic.

"It means exactly that. I'm leaving, Derek." She maneuvered out of his arms to continue packing. "Give it a couple of hours, Derek, and I'm sure you won't even notice I was ever here. Just like it's been for the past couple of months."

"Penelope, please don't go,"

"Maybe if we had this conversation two months ago when I tried to talk to you, I wouldn't be leaving…" She trailed off. "But I'm stronger now. Now, I know I'm a better person without you."

"Don't say that!" he tried to pull the bag out of her hand, as the one person he had ever loved threaten to walk out of his life. "We're perfect when we're together- not apart."

"Maybe at one time we were." She sighed. "Honestly Derek, can you even remember the last time we went out to eat, or stayed up all night just to watch movies? If you're not in the office working late, you're at one of the properties you own."

"I won't work on the properties anymore," he pleaded as his heart was shattering into a million pieces.

"I wish that was enough, Derek." She put one last item into her bag, "This has been a long time coming. I guess we proved everyone wrong- you and I were always better as just friends."

She walked out of the bedroom and down the stairs towards the front door.

"Is this because I didn't take you to the dance classes?" he asked, following her every move.

She shook her head, trying to gain the courage she needed to walk out of the door, "Derek, I love you- love you with all my heart. You were my better half, my reason to wake up in the morning, but sadly- I wasn't yours,"

"You are!" he yelled, hoping the raising of his voice would make her believe him. "You can't leave, Penelope. Where would you go?"

"I already talked to Emily, and because she is moving in with Hotch, she's letting me stay in her condo." She walked closer to the front door. "The moving truck will be here at noon tomorrow to gather the rest of my belongings." Then she walked out the door, leaving him frozen in his spot.

"Morgan, what are you doing?" Hotch asked, bumping into him on the dance floor as he danced with his new wife.

Morgan, coming out of his memory, looked around, he was indeed standing motionless on the dance floor. "I- I'm sorry," he said in a small whisper as he left the dance floor and headed towards the botanical garden in the back to clear his head.

Hotch looked at Emily with a concerned look. "Go after him," she said, giving him a kiss on the cheek.

"I'll be right back," He gave her a quick kiss, then looked over to Rossi who nodded his head in agreement. Both men headed out of the reception hall towards Morgan.

Morgan made it outside, taking a deep breath, trying to control the feelings that were running rampant through his body. He couldn't take it anymore. He couldn't watch the love of his life in the arms of another man. He was fighting a losing battle, a battle that he himself caused.

"How you holding up?" Hotch asked, walking up to his younger agent.

Derek turned to see Hotch and Rossi making their way to where he was. He couldn't even pretend it didn't bother him anymore; he was tired of acting like Penelope moving on didn't kill him inside. "How do you think?"

Rossi handed him his glass of whisky. "Here. This won't fix it, but it'll help a little."

Morgan took the drink and downed it, just like his beer from earlier. "I can't do this anymore."

"We know," Hotch stated, "so what are you going to do about it?"

Morgan gave him a dejected look, "I don't know…" he looked up as the back door of the reception hall opened. He saw Penelope and Marco walking out finding a cozy spot near the roses. Where Morgan, Hotch, and Rossi were standing they were hiding from their view. Morgan stood staring at her from afar, before speaking again, "I'm still so in love with her. I messed everything up not treating her the way she should have been treated."

But she's dancing with another man

Morgan watched in horror as Marco proceeded to get onto one knee and produce a ring from his pocket.

"NO!" Morgan hollered.

To be continued…