I think i legitimately need help. I develop feelings for almost any girl who gives me attention So im 21. And almost everygirl my age that talks to me that i find attractive at all, I get a major crush.
It finally hit me that i have a problem when i met this girl through friends about a week ago and we hit it off. We started texting and she seemed like she'd be a funny, good friend.

Well of course i got feelings for her and somehow thinking she shared feelings for me, i  asked her out on a date (she said no), now ruining what could have been a good friendship, and probably more friendships because now my friend cant hang around them anymore.
What the fuck is wrong with me? 
It seems like i am delusional and think every girl who talks to me nicely likes me. And then i end up liking them.
Im seriously thinking i have an actual problem.