The question is..so should I step away from this marriage!? Kids or not I won't deal with this…

The question is..so should I step away from this marriage!? Kids or not I won't deal with this anymore I swear! I'm headed toward divorce and that's fine because I have been dealing with his negative vibe for far too long! Hes literally blocked me on everything, I can't handle him drinking and smoking and he tells me he will stop but no definitely won't, I told him I don't want to be married to someone who does these things..and guess what..he continues to do them then takes his attitude out on me! Maybe I should have listened when I have been told so many times to walk away but it's hard I love his stupid a** so much! I hate this crap! I'm sorry but I don't have anyone else to vent to! I'm at a crossroads but Enough is ENOUGH!