>>6765643She quit Tsunderia after barely streaming and only being part of them for a short time. Most Tsunderia fans understand that they're better off without her if she was unhappy in Tsunderia so the only people spamming this shit are holobronies trying to stir up drama.
Personally I never watched her as Ria or Miki but I've checked out all 3 of her Rosemi streams and it's kinda becoming more clear that she's just an incredibly shy person. She probably let herself fall into a bubble within Tsunderia and didn't reach out to the others which made her feel like an outcast.