1. It would bother me a lot because I've had bad experiences around people who smoke and it's made me pretty much hate the stuff.
2. If he were bi? I have absolutely nothing against that, but honestly it'd make me sad to know that not only would I be competeing for him against all the girls in the world, but also against all the guys too! That's a lot of competition
I definitely don't hold bisexuality against anyone though. Love is love and labels are labels.