My gf cheated on me with my best friend

Go old school. Cut their brake lines right before the big camping trip in the mountains.

Obviously tell your friend a fake story about how you got an std and that your gf has it also. watch as your puppets mentally spiral out of control.

It would help if you have a photoshopped medical report corroborating this.

Good luck. If she denies that you didnt tell her.. Remind her of that one time she was drunk and told you about the std, it made love making better blah blah and that she must have blocked it out of her memory... Cause you know she was drunk.

thats only ever worked in bullshit horror movies and scooby doo

this plus ghost afterward

make anal sextape

this

maybe the revenge is knowing to not trust a bitch to not fuck your best friend and not giving them the time of day.

this is too utterly predictable.

time to move to another area and get new friends and not trust bitches.

Just break up with her and tell your "best friend" to fuck off.

Suck his dick. That’ll show him.

This is actually gold and not illegal