Help me out? First love problem.?

Last year in September, I persued this guy. He seemed perfect for me in every way. At first he didn't share the same interest, but as we got to know eachother he decided to ask me out. He was raised to believe that you date to eventually marry, which is true but he was looking at a very young age. Even though I am young, I fell in love with him. I was scared because love is new to me and I wasn't sure that I was ready to completely commit just yet. I did a horrible thing. I allowed an older guy to kiss me. He had promised me casualty and that's what I felt I wanted. I told my at the time boyfriend what happened the day it happened. He forgave me. He must have really loved me. A week later I had grown tired and bored, I guess. The older guy I had mentioned still talked to me, we were friends anyways. I told my boyfriend that I liked him. He gave me a choice. I said I couldn't shut either of them completely out of my life. He said he would choose for me then. Then he hung up (yes, this happened over the phone. Let's add points to my pathetic meter) A few days later I started to go out with the other guy. Things were great until just a week later. My first love and I always made eye contact at least 3 times a day and I would be the first to look away. I miss him. He doesn't trust me anymore, which I understand. A few days ago I started messaging him. Explaining that I miss him in my life and how I regret everything. I wasn't and I'm not with that other guy anymore. He finally replied yesterday night. He told me he doesn't want to talk about it. To let it go and move on....My question is, if I should let it go and move on, shouldn't he? if he has, then there is no reason why he won't talk to me. The slate should be semi-clean. I, still being in love with himl, would be willing to choke that feeling down if he would only talk to me again. I know he isn't completely done with me. Otherwise, he would have blocked me by now.