I'm confuse

So i've known this guy for quite a bit now, he's in the same friend group as mine, were acquaintances but recently we've gotten closer. He broke up with his girl a month or two ago, he's comepletely done with her, his friends even say he goes through with that & i def believe it. The day after i went to his party, we had sex. Then the next day we had sex, again. Then the next day we had sex, AGAIN. But that time i spent the night at his house, we cuddled & he kisses my forehead & like he's so sweet and a gentleman and we text everyday & snapchat everyday and just we've been acting like boyfriends and girlfriends. It's safe to say that he's inlove with down there too, & i made it clear that i'm dick whipped. He treats me like his in front of our friends. But anyways yesterday i asked to hang out and he was apparently with his cousin so he couldn't but he screenshotted the party my best friend posted but i don't think he went but, why is he acting so distant suddenly? is it me? or what is this?