Sorry, Thanks (2009)

An unromantic comedy

Reeling from a brutal break-up, Kira sleeps with Max, a charming but disheveled wreck already committed to long-term girlfriend Sara. Max (no emotional sophisticate) becomes obsessed, mostly with Kira, but vaguely with his curious lack of conscience as well. Kira, fighting to win a job she hates and running aimless romantic loops, faces the precarious double challenge of choosing a next step and charting a course back to sanity. Good luck leading with your heart, when your heart is an utter emotional idiot.