You mean Hyolyn's 'accuser' because they already settled it and there was no conclusion to whether she was a bully or not.
When Hyolyn threatened to sue the accuser, she started to get defensive and that backfired because for some reason Hyolyn defending against allegations by suing is a woman being a bitch according to Koreans. Hyolyn then wanted to settle it in private instead of suing, and they came to a proper conclusion that was not made known to the public