Please help? my bf is addicted to smoking he regularlly use normal ciggretes and sometimes weed to? is weed very bad?

Tobacco is worse: In my opinion. Weed can be a problem for many people, but you said he uses it "sometimes, " which tells me that 1) he is using it occasionally and 2) he can do without it. Occasional or "recreational" use of marijuana has few problems associated with it in most people, although as we get older, the increased heart rate can cause problems. Tobacco, however, kills lots of people and causes illness.