Other mistake: More than halfway through the film, after Gwen's room-mate has died of an overdose, she rings her sister on a phone that is not only "Emergencies Only", but it has no numbers on it. So how did she dial out?
Other mistake: Gwen's job is "writer," and it's clear that she doesn't have wealthy parents, or even any parents at all. So, no, she's not going to be able to afford a loft in Manhattan on that salary.





Answer: He was a hard drinker who did not take her sobriety seriously, and she realised he was not good for her.
Brian Katcher