Hello Karlam1991, its nice to meet you.
Karlam1991, I see your love for your boyfriend. You do not want him to suffer that is why you are asking him to quit.
As a psychologist, I would recommend that you try all the smoke free solutions that you can think of., Research, google and there is the patch and some relaxing subliminal music that can motivate your boy friend to quit smoking
http://hypnosis2stopsmoking.net/
http://smokefree.hypnosis2stopsmoking.net/
Karlam1991, this hypnosis method can work miraculously. You do not need to ask your boyfriend again and again to quit. He might get irritated but if you give him Stop Smoking CDs & MP3s gift, your boyfriend can enjoy a healthier and smoke free life, with stop smoking hypnotherapy.
I hope you like the idea