If you don't like my smoke don't breathe

Congrats to all of you who have quit, but quitting alone creates problems as I have been finding out.I am 51 years old, and quit February 19,quit smoking, 2008 after 30 years at 1 1/2 packs a day and realize I'll always be a smoker, even without a cigarette. I had hoped my wife would try, but she isn't and I haven't pushed her, hoping she would, but apparently it isn't going to happen soon. So, she continues to smoke her menthols, (in our oversized garage, since we had never smoked in the house). That is part of the ritual we both shared that I don't participate in anymore, and I realize there probably is resentment there, on both of our parts. I have told her I don't want her smoking in my vehicles, and she doesn't, we already had that showdown. The problem is that she lights up when we are driving in her car, (I guess she considers it's her right to do that), cracks her window a bit and that's to suffice as ventilation I suppose, for my sake. She has been doing this since I quit, but I told her she was inconsiderate when she did this yesterday,stop smoking now, and that quitting was tough enough without her doing that, so this started a big argument. Her point was that I thought everyone had to do what I did, in other words because I quit, I thought she had to quit too. I realize not everyone wants to quit, but her menthols just flat out stink, they even smelled terrible even when I was smoking. So the question is, was I wrong in telling her she was inconsiderate? Besides my concern for her health that I have kept quiet about, how are we going to be able to travel anywhere like this? Does anyone else have this issue? Or, should I just hold my breath and shut up?