Hire a private investigator, document everything, then when you have it compiled and ready to serve to your lawyer, take her into the bedroom for one last lovemaking session. Try out every weird and sick thing you've heard. Captain Nemo her, do the Angry Pirate, wipe **** on her lip and **** her so hard in the ass that it bleeds. Then tell her you are sorry, you were overcome by a demon.

Serve her papers the next day.