When you tell him you’re not interested, it’s a taunt to him to see if he so can still get in your pants. Like you’re both playing here but it sounds like you have actual feelings, which is not great in this situation because you are going crazy wondering why he isn’t texting you. He’s not interested in more than sex. If you think this will ever be more, I think you should stop, literally actually stop letting him play with you. It’s making you crazy but he’s not being confusing.