What do I do?

Alexis

So I have this think with a guy I go to school with and it’s been getting more intense. Like he’s very touchy-feely during class or when I see him. But after he sent nudes on Snapchat he seems kinda off and I asked him about it and he never answered. Also he said he wants to have sex or oral if I’m up for it but he hasn’t brought it up at all since and I don’t know what to do. I really need some help/advice.