The smoke effect

I am an ex smoker and try not to complain to much about smokers. I don't mind being around them as long as it is only one smoker smoking at a time in a confined space. If I am at someone else’s house and they all light up I don't complain I just say my good nights and leave. I know there are people out there that complain and you are right it is really hard to find non smoking friends. Besides I still love my old ones just not their habit. But the same question applies to smokers why hang out with a friend that complains all the time about their smoking? They could have plenty of others who smoke. If we are going to have friends that smoke that hang out with friends that don't a compromise has to be made in order to maintain the friendship. Like I said I still love my smoker friends and feel the friendship is worth hanging on to. I try to respect them and they try to respect me.