For your own benefit, maybe don't confront.

You might accidentally upset your manager and risk your manager sabotage you later in the future in your new job.

The only benefit you get meeting her is getting your anger out. Or emotionally express yourself. But it might not make your situation better.

For your own benefit, just treat that bastard as dumbass and keep your future job safe for your own good. If you want, maybe after you leave you viral him/her lor if you want to do bad or evil one.