What's going on?! PLEASE HELP ME!!😬

So there is a guy that I am talking to right now, and we have thought of "doing it". And he is way more experienced than I am. But I still know what I'm doing. I think he was shocked about how "freaky" I really am; and I think he expected me not to know much. He tells me how much he wants to, and I tell him too. But, when there is a window of opportunity, he doesn't use it. Is he scared or what? I've already asked him if he still wants to, and he says yes every single time. What's going on?! Please help me!