What if you went to the movies with a boy and y'all made out and after he left he won't text you.
he was all over me
Maybe the guy is trying to process what just happened. Guys usually get excited after such intimate moments so they may take time before getting to reality. You can break the silence by texting like "I had a great moment" and see his response.
He's letting it soak in.
He used you ask him in person go to his house and ask that douchbag why don't you talk to me
He's just using you.... And he wants something from you because he's a dog