A drunken mind is a sober heart?

I have a friend who is quite a few years older then me. I’m 19 and he is 27. Anyway, whenever we hang out (if he’s been drinking), he will tell me how he’s falling in love with me, and I have a 3 year old daughter, so he says how he wishes she was his and my child. When he is sober, he is the most distant person I have ever met in my life. Emotions never get brought up, in fact, he makes a point of telling me he isn’t in love with me. I don’t understand what’s going on. Why does he act that way when he is drunk? When he is sober, he will also make these comments about how I have too many guy friends and things of that nature.I really like him, so this sucks for me!!! Any advice?