Why did he ghost me?!?!

So I was talking to his guy and we were literally the best of friends. I’m 18 and he’s 20. Before anything we always put our friendship first and of course we also did a little sexual talk. He lives in London and I live in Australia so it’s an online thing and our timezones are the complete opposite. I talked to this guy about literally everything and we spoke every single day. For new years I thought about him the whole time and when I could talk to him again he was telling me about how he cock blocked himself multiple times because he couldn’t stop thinking about me. I honestly have never given him the idea that he has to be faithful to me or that he couldn’t have sex or whatever because that would be ridiculous of me and even if he did I wouldn’t have minded at all since we’re so far. Everything was going good and we told each other that we liked each other and had feelings. That’s when he asked me how many guys I was talking to and virtually fucking. I tried to tell him multiple times that he was the only guy that I was talking to and doing all this sexual things with. He kept going on about how he knows that there’s definitely more. I tried explaining that there’s maybe a couple that text me and try getting me to do things with them but I don’t and that he’s the one that means the most to me and I ignore the others. He didn’t seem too convinced and he said tell me about them and that’s when the call dropped. At first I didn’t think much of it because he was little drunk but It’s been two days now I’ve texted him a couple times and he’s seen it but just doesn’t respond. In the beginning he told me that he hates it when people become a part of your life and then leave so I don’t know why he’d do it to me. He means so much to meet