Revenge Time...?

So I've been seeing this guy for around 2 months now. We're both in college and the nature of our relationship is just hanging out and occasionally casual sex. Being the idiot that I am, I caught feelings and asked if he wanted to date. He said no (to my face, mind you) and then proceeded to tell me about some other girl he tried to pick up earlier this week. I mean, I was prepared for "no" to be a possibility, but the complete disregard for my feelings was painful.

I want to make this guy eat his words and make him absolutely hate the fact he turned down the opportunity. Anybody ever done this before and have any tips on what works? 😂