Ruined everything

I sent my last messages to someone I had a falling out with. They hadn't responded in 5 months.
They wanted space. So maybe it's that but they haven't said anything back at all and I don't understand anything.
Making assumptions was a problem I had, so I tried my best not to do that. But being ignored for almost half a year...maybe it's just over?
I didn't want to stalk, but checked briefly they went online frequently and seem to do well.
Maybe I shouldn't have sent paragraphs, but I wnated to be clear about everything. It's easy to misunderstand online, and it was the advice I took.

Man I must be so annoying. Why am I even sad?? I hurt them, not the other way around.
I've never had friends before them but now I definitely have none. Seems no matter what I do, I'm not meant to be with people. Now it's too late for me to improve anything. I'm still going to, but I'm just going to be alone.

Ruined my family, ruined my only friendship.
I'm really, really depressed. I think it's better for the other parties in both scenarios but I can't say I see any bright side to this. When I've talked about it in the past, no one really understood what it was like being rejected and pushed out of everything. Everyone kept on saying I was overdramatizing, but I wish I was...

It's such a hard time right now and I have to be alone once again.