Good on not saying I love you back mate She was drunk, if you said it back sober it might have complicated things. Keep your cool, don't let her know that her not being there is drivin you crazy even if it is, that way if she wants another chill relationship like the one you had then the avenue stays open for that.

And don't make a big deal about the cigarettes. I agree cigarettes are fucken nasty, and smoking anything for a girl isn't really attractive (I can let weed and the occasional whatever slip though) but you don't want to make a big deal. Especially if she does it when she's drunk. What you can do is kind of bring it up in a joking manner, like I know your secret kind of laughing you know then top it off with that's nasty and then switch the subject. But don't go off over cigarettes that's a bit much so you did good by biting your tongue.