My room mate and I have been living together for well over a year. Everything has been fine up till he started dating this new girl who smokes. The understand has always been that there will not be any smoking with in the apartment. Both of our names are on the lease, and if either of us cancel with in the next 6 months it would be very pricy. The problem is that although she doesn't live there is a heavy smoker and it has caused many arguments. He has been absolutly rude about the situations, and now her friends are over very often as well and they all smoke. Am I trapped to deal with this? I hate to be a jerk but I'm tired of this situation. We both split the rent and util. He refuses to leave becasue of the cost, and so do I. However we can not agree on this. I would see it as there should be a law or something protecting my rights here. Is there anything I can do?