<human>: Smoking is one of the few real dealbreakers that I have for a relationship, and I've been desperately trying to get him to quit. Maybe I don't always do it in the best way possible, but at this point, I feel like he just doesn't care. When he doesn't try, but tells me that he is trying to quit, I feel lied to. And when he apologizes for smoking after he does it...I just don't understand. If he didn't do it in the first place, he wouldn't upset me. And the worst part is that he apologizes for upsetting me and not for the smoking. It feels like he doesn't care about me at all when he just keeps doing something he knows I can't handle. I can't just sit around and watch him kill himself. But at this point I don't know what to do. I love him to death and I don't at all want this to tear us apart. I want to marry him someday, but if this keeps going on I feel like I'll just lose it. I'll become bitter and resentful, which I would hate to have happen.

Summarize the given text in a few sentences.
<bot>: boyfriend is a smoker and isn't quitting, despite how much I need him to. Trying to decide what to do.