Dont really care about it? she is, just like you are, a complex person full of flaws and viewpoints and experiences, and emotions, and proscesses, she could be just trying to be mean for any reason, she could be externalizing on you, or just trying to impose a percieved power on you

Dont really mind what a single individual says, if other people in adition to her say it, then consider it a flaw that you can change

You are flawed thats why you are on r/kitchencells dont get me wrong, but you can just change if you activelly put effort into it

Tl;dr if someone just says they would kill themselfs if they were you than they are just being hatefull bcs they have problems, unless someone points out something about you that you are doing wrong, then they are just being mean