In love

So i was talking to this guy and we have been talking for a while and last week we had sex. He says he doesn’t want to be in a relationship so i went into this telling myself its just for sex but then after he dropped me off I can’t stop thinking of him. And i think i love him. And whats weird is if he wanted to only do it for sex why did he buy me dinner then breakfast the next morning and not to mention he wants to see me again this weekend..