Feeling Betrayed: Another Friend Gone

18+ tw so I'm starting to think that I will never have any good friends. I had started talking to someone and we got very close (at least I thought) and so I invited him over to hang out when he was free. We cuddled and it progressed into more and more. but right after they finished they left. they were all over the place mentally today and I was worried so I was constantly checking up on them like a good friend would. I accidentally logged off snap and I came back and they were no longer on my snap, so they blocked me. a day after they got into my pants even though they said they only wanted to be friends (I only wanted to be friends too but I let it happen because I'm dumb). it was the first person I've met in this town that was actually nice to me then they end up ghosting me... this is like the 10th time I got close to someone then they left ... idk if I can do it anymore...