My mom has been trying to quit smoking for a couple months now. I have tried to be as supportive as possible, talked to a "quit coach" for advice, looked up weekly smoking cessation groups for her to go to, recommended quit smoking websites to her, gave her what I thought was motivational information on the benefits of quitting smoking.
I've told her I understand it's a tough process, that I'm proud of her for trying and cutting back, and I've steered away from throwing info at her that's meant to scare smokers into quitting. I've always thought that a bit ineffective and very annoying anyway.
Anyway she claims that she is smoking less now, and that when she does, she goes outside. I do think she makes an effort to go outside most of the time, but not all. There have been nights at 3 or 4 in the morning when I've woken up because there was a cigarette smoke-like smell in my room. (I finally figured out one night in my half asleep daze that opening the window and turning on the ceiling fan helped, but we have central air and it's silly to keep the window open with the air on.)
Anyway, I recognize that smoking is totally legal and it IS her house, not mine, so she should be able to do what she wants in it. But it also bothers me that she would continue to smoke in the house knowing it lingers up to my room. I try not to complain too much, but I guess I don't know what to do when I can't even breathe in my own space sometimes.