@Kevadu I do agree that if she does have a boyfriend then other people shouldn’t be calling her mean but your not looking at what’s actually wrong here.
First off in Japan idols themselves aren’t usually allowed to have any romantic relationship because fans would have a outcry and that itself is pretty dumb but this is japan alright they are dedicated to whatever they do and it’s in the contract on what idols sign with managers.
Second she does many thing which is pretty fucking annoying like having loud sex and disturbing neighbours with this stuff. Having a camera inside another guys house which itself is illegal, and just being a overall asshole sometimes.
She does do these things to “tease” this guy but as you can see it’s ruining his life by making him more insecure about himself and really is psychologically destructive.
Another thing I’d liked to add is that she should honestly act more professionally if she’s a idol.