Would you date someone even if he does stuff you don't agree to...?

ok i was dating a sagg and hes koo but he smokes and he also drinks ive never dated a guy like that because i have my limits and i dont want to hurt his feelings because hes really sweet to me and hes also a very nice guy however i am a scorpio and i know i can be rude and i wont want to be like hey um yea move away u stink and i dont like guys who smell like smoke its unattractive and i know that if i say what i want to i know hes going to be hurt trust me i have that look that would make u cry....but i dnt know should i down grade a bit or what u guys think