I'm just feeling really down now

I was in a sort of situationship for about 2, months with a guy I've had a crush on for years, he's a few years older than me. A few weeks ago I was joking around and told him I wouldn't talk to him, then he called and I muted the call for a few minutes before disconnecting. Apparently, I took that joke too far and he didn't talk to me for 2 days, when he did, he was upset and once I understood that, I apologized and told him I was sorry for upsetting him and that I didn't understand how it was wrong but I'd try to and I wouldn't let that happen again. He said that wasn't enough and that he had nothing more to say to me unless I understood how wrong it was. 2 weeks later I apologized again and told him I'm still trying to understand but don't want to lose him because I don't and he told me once again that it wasn't enough. We haven't talked since then. I miss him so much and it hurts a lot to lose him even though I'll get through this. I just hate that I've put so much effort into this relationship we had and he didn't even care. It hurts that he weighed everything we had with a mistake I made and thought that wasn't enough. Before we got close I was constantly the one trying to get close to him and texting. I was always trying to consider his feelings when I did something. So how could he not at least acknowledge the effort I made? Why was that not enough for him? Did he even value what we had if he let go so easily? Especially when I know that I would try harder if he has hurt me. I know he must have his reasons but I'm so tired of feeling tossed around and like I'm not worth much to people I care about and him telling me my effort wasn't enough was a huge blow for me. I really just wish he would come back and I could tell him how I felt and how he hurt me but it doesn't look like he will and now I feel really alone without him.