I'm going to ruin my friends relationship and friendships after calling her out
Why would you think about doing that to your friend?
I absolutely hate her and you should think about it yourself
Wrecking her relationships could come back to haunt you. You can't do that kind of damage and not expect someone to treat you badly in return.
I don't see how it's a big deal. It's not like doing it is hurting her.
What you are doing is absolutely hurting her, you shouldn't intentionally ruin your friend's life like that.