Jackson when he confronts you at your apartment building, only to see you with another man.The two of you were in an argument and hadn't spoken in over a week, as you hadn't been at work.
He was sick of fighting and decided to go you to apologise, but when he arrived he saw you and Alex hugging and assumed the worst.
•••
"What the hell is this? We have one argument and you just go running back to Karev?"