Being in Stray Kids and dating Bangchan was a train wreck (get reminded of Railway, traumatized stays.). People either thought you weren't good enough, or thought you were just right for him. The people who thought you weren't good enough picked you apart piece by piece.
They would ridicule the energy you gave in dance practices or when you were on stage. Some would try and show that you used auto tune when on stage. You didn't. It hurt a lot, seeing your fans hate you all because you dated Bangchan.
During a live he was having, a fan said that some different kpop idol was better than you and that Bangchan deserved better. He ignored it at first but more comments like that kept rolling in. What made it worse is that you were sleeping in his bed just a few feet away, out of view of the camera. Some fans were defending you but a lot were on the negative side.