My girlfriend and I have been together for 4 years now. I love her very much and there have been times that I have known I could spend my life with her. When we first started dating, she would smoke cigarettes habitually, something I am not okay with. In fact, back then I told her that she had to stop if we were going to be together. She stopped smoking up until about 6 months ago. Now she has started smoking cigarettes heavily again. I don\’t want to be a controlling person so I don\’t know how to approach the situation. Unfortunately, I’m also very bad at confrontation. We\’re not in the dating stage anymore and we are very close, so I don\’t want to just break up with her. The smoking is a dealbreaker for me though. What should I do?