You broke the cardinal rule when you went into a business arrangement with someone who has no business. Don't get into a bunch of drama and create and enemy that KNOWS what you are up to. I'd leave him enough shit to shut him up walk away free and clear to live and grow another day.

All that shit can be replaced, and if you are the resourceful one of the 2, you should have no problem getting up and running again. Only the next time you will have learned from your mistakes on this one, so it will go better for you. Plus, you won't have 50% coming off the top to support someone else.

Just my penny and a half.
Peace.