A/N: Timeline is a little awkward in this, so bear with me. Think of it as everything that happened from 6x02-6x20 happened [no Kelton drama though]; but Jay's undercover op (5x07-5x10) happened after the season 6 stuff; putting that tension w/him and Hailey at the forefront of their issues per the current storyline. And in this scenario, Jay is the one that went off the rails (as Erin originally did in the s3 premiere). Make sense? Hopefully so!

"I wanna hear you say it."

"Say what, Hailey?"

"That you're no longer my partner. That you're throwing it all away, Jay. That these last 2 years have meant nothing to you!" She could hear the anger build up in her voice.

Her practically former partner scoffed at her. "Are you done?"

She harshly pulled his sunglasses from his face, revealing his red, hungover eyes. "Jay, come on!"

"No, Hailey. I'm done with this. I'm done with you." He snatched his glasses back out of her hands, and stomped off before she could say anything else. Like 'I miss you' or 'You're better than this.' She didn't want to hate him. In fact, up until recently, she had trouble keeping the exact opposite feeling to herself. But she didn't love this side of her partner. Jay had pushed her away for long enough, and as she got back into her car, she sighed. Maybe it was time for her to let him go for good.

"Hail, have you seen Jay today?" Adam asked her, tapping his pen on her desk in an annoying rhythm.

Hailey felt her neck snap up to face him. "No," her voice came out clipped and frustrated. She took a breath, knowing she shouldn't take out her anger for Jay on Adam. "No, I haven't. He's been MIA since last night. I haven't been able to get a hold of him."

Adam nodded, taking in the information. "Did he say anything last night? Or is there any place he would go? I know he's dealing with a lot, but he's never missed."

She grimaced, but knew he was right. No matter what was going on in Jay's personal life, he never ever missed a day of work. Not once. Something's got to be up, Hailey thought to herself.

"Hey Adam?" She asked, getting up from her chair. She put on her jacket. "Can you ping Jay's cell for me and text me when you have it?"

Adam looked over at his former fling with curiosity. "Yeah, sure. Where you off to?"

Hailey looked at him quickly before grabbing her gun and phone. "Going to check out Halstead's apartment. If he's just sleeping it off, I'm gonna kill him for making me worry like this. I'm hoping I'm overreacting, but I still want to check up on him. Just send me the location, please?" She said, slightly exasperated.

"Jay?" Hailey knocked on his door for the third time. "Jay, come on!" She pleaded, banging on his door, this time loud enough to make his neighboring tenant come out of their apartment. It was an older woman, who looked simultaneously annoyed and concerned.

"What's going on out here?" She asked, looking at Hailey strangely.

Hailey flashed her badge. "Ma'am, I'm Detective Upton. CPD. My partner, Jay Halstead lives here. But he didn't show for work today. Did you see him leave here? Or have you seen him at all since last night?"

The woman shook her head. "No, dear, I'm sorry I haven't seen him. But here," she paused, taking a few steps past Hailey, stretching until she reached the top of the door frame. She pulled down a key. "He hides his spare up here." She put the key, and opened the door for Hailey.

"Thank you." She said, drawing her gun from her waistband and shutting the door behind her quietly.

She carefully walked down the entryway to his apartment, clearing the bathroom and kitchenette. She skimmed over the mess in his living room, but nothing seemed out of the ordinary. At least not for the Jay Halstead she's known recently. Beer bottles littered the hardwood floor, empty wrappers and dirty clothes were strewn across the couch and chair. God, really Jay? Hailey rolled her eyes at the sight, but continued her search of his place.

She cleared the empty guest room, and moved onto his bedroom. She noticed the door was closed. Maybe he was just passed out cold. She tried to open the door, but it was locked. She banged on it, hoping the sound would be enough to jar Jay from his drunken stupor. No such luck. She sighed, praying he wouldn't throw a fit at her for breaking down his door.

She kicked it in, and was greeted with an empty room. No sign of Jay anywhere. But there were signs of a struggle. Hailey noticed a pillowcase was missing, and she saw a tiny bit of what she assumed was blood on the corner of a sheet. Shit.

She jumped at the sound of her phone going off. It was Adam. He had gotten the location of Jay's phone. "Well, where the hell is it?" Hailey asked impatiently.

"Hailey, you should be right on top of it." Adam said factually. Hailey scanned the floor until she indeed, found Jay's phone underneath the bed.

"I got it, I got it." She said, getting up off her knees from crawling. "Dammit, Adam. He's not here. Call Voight. I think Jay's in trouble."

Hailey could feel the tears coming on, and her body was brought back down to the ground by sobs.