People do just let us down sometimes and it could be lots of things from jealousy to just-plain-meanness to oblivious misunderstandings and disconnections. Maybe they're motivated by some superficial aspect they detect you're not a part of any longer. Who the f knows.

Feelings can also be misinterpreted online. At one point in life something like this would bother me... was I overbearing?... did they never like me?... am I a freak?... a parriah?... not part of the zeitgeist? Now I just really let these things go because I realize it's very likely not about me, and I probably won't ever know, and I'm pretty happy with how I am so I'm okay with that. I'd suggest just moving on and direct your attention to real people in your life now, people who get you or who you really love.