That is INSANE.

You did right punching him in my opinion.

Can you two not just make up and be "friends" just to avoid the conflict?

Theres nothing wrong with anything he has said "apart from INSULTING women, which I guess he means negging, in which case, just outright deny that.

If you're ever confronted by anything he has said, be proud of who you are and call him out on being so insecure with himself that he has to go spreading bullshit about you just to make him look better. And also make a joke that he can't read.

Alternatively, if you wan't to make his life hell, I'm sure you can start a new thread and some people here would give you some amazing pranks (There was a good thread on prank jokes sometime on here).