I wish my brother ex-girfriend vanishes with all bad that she caused but he is still in love with her
Why do you want her to vanish?
She left my brother and burdened him with all the problems
It is hard for people to care much about people who hurt the ones you love but you shouldn't wish her to be gone. It will not make the person you care about feel better.
I just want her to go away though.
I'm just saying that it's wrong to wish harm upon anyone. You should just talk to your brother about your issues with her.