All I’ll say is it can be difficult to read tone in text. Not aimed at anyone here, but I have read posts elsewhere (different forums) I felt were aggressive in tone, but others didn’t question or react to in the same way I might have if I’d responded.
I’m very sorry to hear you’ve been bullied online, in any case. The internet is, unfortunately, a good place to spout vitriol at others if you’re so inclined because of the anonymity it offers. Even better if you’re in a clique, as you’ve found! As to why you find yourself a target so often, I can’t say for sure. I’ve been a target in real life even though I’ve always tried to keep my head down and not go out of my way to offend others - so, I do get what you’re talking about, even if I don’t understand why, either.