This chap obviously makes you happy, and I think it is significant that he threw away the cigs when he knew you didn't approve. It very much depends on your viewpoint. On the one hand, there is nothing you can do if he smokes when away from you, and rightly so. Everyone is entitled to privacy, and he's not doing anything illegal. on the other hand, you have good, sensible reasons for being bothered by his smoking. The best way to approach this is to tell him how you feel, but do NOT demand that he quits smoking. This will make you come across as domineering and bossy. You can say that you would prefer him not to smoke around you, and also that you find the smell of tobacco a big turn off. You may well find that in order to keep you happy, he ends up quitting of his own accord. But really, if smoking is the only thing you can find wrong with him, then you're a lucky girl!