This guy I’ve been seeing for 5 months went to a party without me and hooked up with another girl. He showed me all the attention in the world and treated me like a queen and told me he would never play me or be like the rest. He even told his parents about me and we would hang out at least 4 times a week. After he hooked up with her he called me to confess but he took 2 days and didn't reply to me because of how guilty he was. He apologized for wasting my time and said said that I dont deserve him and said he had way too many drinks. He said that everything he meant was geniune but the fact that he did that means something is missing or he's not ready for a relationship. I never expected this from him, what should I do?