Does he like me or wot?

ive bin friends wit this guy for 4and a half yrs and in the past 18months or so ive bin lookin at him in a difff lite. i think about him all the tym and weneva we go out (in a grp of friends) we flirt like mad, esp if we've bin drinkin. our m8s have noticed n make jks about it and weneva we talk he calls me baby etc - bt bare gals lyk him and he talks about other girls in front of me. is he just bein smooth (coz he is a flirt) or does he actually like me?