Push and Pull by Claire Cullen

Matt is finally putting his life back together after nearly losing his battle with PTSD. Finding love again is the last thing on his mind. Until he falls head over heels for Jasper. Sure, Jasper’s had a tough life, but he’s all about the future and Matt is more than ready to let go of the past.
Jasper wants to make something of his life. He’s tired of being tagged as the ex-foster kid, the homeless guy, the hopeless case. When he runs into Matt, his only expectation is a bed for the night, whatever that will cost him. But Matt is different. With him, there’s no catch, no false promises. They couldn’t be more different, the doctor and the high school dropout, but for once those differences don’t seem to matter and the life he’s dreamed of seems almost within his grasp.
But as Jasper’s new life starts to unravel, and Matt along with it, they’re faced with some tough choices. Do they go their separate ways? Or head into the unknown, together?