Why is making irl friends impossible? Why does everyone leave?

I haven’t had a proper irl friend in a year. I’m almost always alone. I only socialize at support groups. The only calls I have are with my therapist.

I’m 22 and I’m truly tired of rarely having irl friends and them randomly leaving in a couple months & people I want to befriend ghosting me online. I’m just tired and I’m tired of constantly having only this to think about and talk about to my therapist. I just wish I could know what’s so deeply wrong with me that almost no one ever stays. I think one of the last (long distance) friends I have/had(?) recently removed me from her close friends story and we haven’t even talked in a long time except for one neutral/kinda positive check-in chat.

I’m so beyond tired of not having anyone to hang out with. No partner, no family, no irl friends.

I got so lonely that I recently developed an unhealthy obsession with this person that I crush(ed?) on. Knowing that us getting together would be a disaster.

Really. Tired.