She was complaining about getting banned on Twitch and in response to him trying to give her advice, she snapped at him and called him a hindrance/nuisance/obstacle.
After two week in which she made it crystal clear that she was aiming for the audience that was mocking her, that was the last straw and he left quietly. In response, she called him a traitor on stream. The last words she said about him was that she was planning to make his name "NG" on her streams going forward