I need a guy's view on this one...

[Notalotaluck]

I'm a 20 year old senior in college and I can't figure out why I can't find a good guy. I have been through the psychos, clingers (they seem to flock to me), losers, and ass holes in disguise... but never a good one. Literally every guy I have ever been in a relationship with has cheated on me, and I dont know why I can't find one that will just stay faithful. They all start out as great guys, but it never fails, they end up cheating on me. I'm not full of myself but I know that I am a fun girl to be around, and I'm somewhat attractive... I think. lol. So I really want to know... Is there something wrong with me? What do the GOOD guys look for in a girl? And where the heck do I find one? I know they are probably hard questions to answer but I'm starting to lose hope and I don't want to end up being the crazy old single woman with 90 cats. Help!!!