How do i deal with a friend that makes out with every guy you like?

I'm in a coed house with this guy. he is soo sweet and nice and well mannered. he is very hard to get to know, since we are both so shy. the thing is i always catch him staring at me! he does things for me, like open doors and donates to my charity, and finished a piece of chocolate i didn't want, but i thnk he's just being nice? we have hung out more and now he's seems a bit more comfortable coming up to me and starting a convo. he always seems to be around me (even if not directly talking to me). what should i do? flirt? the only thing is he hooked up with my girl friend last year, but doesn't seem interested in a r/s. They made out again two nights ago, so i'm guessing he doesn't like me then..(thing is my friend does this with LOTs of guys and they become ';off limits'; b/c of it ughhh and she doens't ';know'; if she likes him or not)How do i deal with a friend that makes out with every guy you like?
Well to me it sounds like he might like you as a friend. Or maybe your friend sees you with him and is jealous and then wants him again. I have heard of this all of the time. And your friend probably does this all of the time b/c she's easy. I have a friend well more an ';associate'; that does the same stuff. And I can't stand her. So just talk to him and make a move your self and then you'll really know if he likes you.How do i deal with a friend that makes out with every guy you like?
looks like he likes you. so....your mate puts out. i think it all depends on how good a mate she is to you.

it looks like your mate is a bed mate and he likes you as a friend or a future girlfriend. so try getting him alone and do a good bit of flirrtin. that should work. but make it clear that you wont take your pals boy away from her. if he likes you he will tell you the truth.... or you could even suss out how things go by asking your friend. how she really feels about him.not to much i hope .x