I quit after 10 years of smoking. It's been close to three years since I quit. The girl I'm seeing now, the love of my life, and the woman I will marry smokes. I don't like it, but it's her decision, I don't love her any less for it. Of course I've known her for 5 years, back when I used to smoke too, so it's not like I just met her and she smokes, it's possible that if it happened that way I might be more turned off.
I can't really smell it on her though, and she most definetly doesn't taste like an ashtray when I kiss her so I guess I'm just lucky like that.