But why would he say that he misses me and that he know that i know that he has a g/f?

does he tink that i dont know or does he just want me to talk 2 him, but he wont tell his g/f that he says hi 2 me. i was his old crush. i was because i did not know wat i wanted to do. when my ex:b/f broke up with me, when he broke up with me i wasent sure wat 2 do with him because wen u get heart broken. u cant get ova ur ex: that easaly. so what should i do if he want 2 talk 2 me like a freind. or wants 2 tell me somethin. because when he said that i miss u so much. i know that somethin was goin on. so what should i do about him?