I was just wondering what "enforce it" means? Unless you granted he some sort of property right in the house (or right of possession to the MBR as in a lease-hold like if you were renting to someone), I can't imagine what "enforcement" would be. Police don't have any authority to settle arguments between spouses. If there is some sort of restraining order, they can enforce it, but this definitely does not sound like what that is (requires a judge/court)
"Enforcing" a contract means either a) damages or b) "specific performance" (as in a court "forces" you to uphold your part of the contract. As for (a), I can't imagine what her "damages" would be... she could still stay in the room, but you'd be there with her. As for (b), courts generally shy away from doing this... particularly if there are no "damages" involved. Further, property rights are complicated and governed by a completely different body of law, so a judge wouldn't be able to just kick you out of the house or MBR. Most likely, "enforcement" would just mean she didn't have to do whatever she promised you in the contract.(Did she promise you anything? because if not you'd have a contract void for failure of consideration.)
I have to admit I have a strong academic curiosity about this. If you'd be willing I wouldn't mind hearing more details or see your transcript here of some of the provisions.
Either way, DB-ing wise, sounds like you may finally be on the right track... that "contract" had your b***s in a vice. Talking to her about it first was a big time mistake.
And FWIW I agree 100% with everything AS posted just above. She's gone nuclear on you, dude.
Enforcement would mean remedy instead of suing for a financial sum as our finances are co-mingled. It was my hope that a judge would order her to meet her obligations but that contact is no more. I can post a little bit of the T&C later. I think it would come under contract law rather than matrimonial law but I don't know enough about this.