I have always been ghosted, ignored and been treated invisible my entire life, but I don't know why?

I've been through multiple friendship breakups, and I apparently thought I was the victim in all of them, until I recently went through a recent friendship breakup with my best friend of three years. Maybe this pattern isn't just a coincidence, maybe I AM the problem. Whenever I'm friendly to a random girl in a bathroom or give her a compliment, she'll look at me, she can definitely hear me but she won't reply like I'm invisible. Whenever I'm in a group setting, I'll say something, everyone will look around and pretend they didn't hear, I'll say it again, nothing. Someone else starts talking, and they've got their attention. Do I need to scream? Can they not hear me? I've always been a people's pleaser, and the therapist friend, so I doubt I say anything insensitive. I don't have a problem with online friends, they always call me for advice instead of their other friends because I know what to say, and I understand. So if THAT'S NOT the flaw, then what is?
y. I never got closure. I don't have a problem with not having friends, I just need the closure. What about me is drawing you away? I'm scared that the same thing will happen with all my online friends when we meet. Why am I unable to keep friends. I asked my friends about my red flags, but I think they won't tell me because they don't want to cause tension? But at this point, I would be eternally grateful, because I'm losing my mind every day, just wanting to know why this always happens.

If anyone ghosted their friend who may sound like me, please tell me what was your reason for ghosting them (please don't sugarcoat, and be brutally honest).
I have always been ghosted, ignored and been treated invisible my entire life, but I don't know why?
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