I don't want to quit smoking even though my girlfriend really wants me to
Isn't quitting smoking a good thing for your health? Why don't you do it?
Because she smokes too and she also always tries to control me.
It is good to quit doing a habit that is not good for your health but I understand your frustration when she does it too and is just trying to control you. But it is good for your health so you should still consider it.
I love my girlfriend so I think I can quit smoking.
Make sure you take that quitting path with you. So you can be both free of cigarettes.