Why would a guy ask you if you are afraid of him?

this guy i've known six months, i dont know what his deal is , he sleeps around ..he's 26, and im 21, he stares at me , he tries to make jokes, he teases me sometimes, and he can be a jerk , he told me twice he loves me ,but he has been drunk . both times he's told me and the second time he told me asked me why im afraid of him and its probably because i dont trust him, he can be a jerk and he is the type that is biased and narcissistic , anyway, he tries to get my attention, that night he kept trying to be by me and look my way, the the few times i approached him and but for the most part he kept trying to start convons w. me ,im short with him tho.., he doesnt go around and he tell everyone he loves them and i havenever gotten told before "i love you" by any other guy than him and trust me i have been around a lot of drunken guys..whats his deal