Why do I feel this way all of a sudden? 10 points!:)?

Hey, so I have always been the kind of girl who has been boy craaazzzyyy! Like seriously even in pre-k when all the other girls were still on the "cooties" phase I was off flirting! Haha, but lately I just really don't care about them anymore. Yeah, I'll be like "oh he's cute" or something but not at all like I used to be dreaming little fantasies about them. Ha, for example when I would really fall for a guy I'd dream about our wedding or him saving me from a fire! Hahahaha yeah I know it's stupid right? Or I used to have lust about them a lot of the time now..I dont as much! A couple weeks ago I was having some reaaaaly strong lust toward this guy I liked and I made out with him and it was great! And I still had lust after that but it just seems like one day I did'nt anymore? Now, I did get my heart broken a few months ago but I've liked guys since then even though I'm not over him. He is pretty much the only guy I look at or "creep" on on facebook. So is there something wrong with me? I was worried I was gay even though i didnt have any thoughts like that or look at girls in that way I was just scared cause I wasnt as boy crazy as I used to be.. but I know theres no way Im gay haha anyways but why am I feeling like this all of a sudden? Is there something wrong with me? Pleeaaaaseeee help! Thanks<3 God bless!