Erm, well I guess only you know the answer to that. Whatever's in your heart yo'. This is why i'm very hesitant to get into a relationship, women fuck with your head. I've learned to accept the fact that it probably isn't going to work out, that's why i've given up trying.
Also i'd never go out with someone if I knew they were doing drugs, hell, I wouldn't even go out with a woman if she smoked.