Why am I like thisss 😭 (turned into a venting post sorry)

There's this guy I've been talking to for a couple months. It hasn't even been that long (not even 3 full months) and it's already going to shit lol I really liked him, I get attached easy so that's on me but he was a really cool dude and I enjoyed his friendship. But I feel like either he was looking for something else or he just wasn't interested in me at all. Bc he's been soooo dry and goes hours without responding to messages and he wasn't like that and if he did miss a message he'd apologize and make it up to me. Well as of last night I decided that it's not healthy for me to be waiting on some guy that doesn't even give me the time of day so I decided to just stop responding to him. But it actually hurts. Like I want to cry (my meds don't let me lol) but I know it's silly to cry bc we only just started talking. I don't have any other friends. I know a lot of people say that but I genuinely do not talk to anyone. I'm really lonely 😅 so when there's someone new I tend to hold on to them no matter how bad it gets. That's why I stayed with my ex for so long :/ Anyway. I was considering letting him know how I was feeling but idk. I feel like it's best to just let go? I was concerned for him and I let him know that I felt like he wasn't ok bc he wasn't being himself. But he said he's just tired. I don't know. He was a good friend at first and I feel like I'm being a bad friend for ghosting him. But I don't like how one sided it feels.