Why did he stop contacting me?!?!!?

So our situation is... we wet out in the 7th grade... we broke up like two months later. nothing big. we have the ame group of friends. junior prom... we hooked up. like made out. and spend the whole night together drunk. then at another party he confessed all him emotions and huge like toward me. so boom, we're officially talking. he calls/ texts/ webcams/ pokes me on fb everyday. and we flirt and text like daily until he calls at night. we talk about everything.. he says we're talking talking and he really likes me. this has been going on for like a month or a month and a half. but like all of a sudden he stops... like on two days ago it all stopped!! and i know hes on facebook& skype, like hello dumbassss i see you're online!!! was it because once i replied hellla pissed cause he didnt reply??!? but he woulda still texted me! and i changed my fb status to "cannot trust anyone" but it wasnt even about him!!!! im soo paranoid, help please!! =(