Sensible advice pls.?

There is this guy who comes to my tution. He always makes it a point to sit next to me or close to me. then he is the oly one who says hi n bye wid a bid smile. yesterday he asked me if i was still single n why i had broken up with my bf....i told him that he was not a trustable guy. then he asked me if he was trustable. do you think he likes me or is just a curious guy?