In your domestic partnership situation where it seems that all the debt that you and ex boy-friend is joint due to signing loan applications for credit cards as well the the lease for the townhouse, there is no real way to insulate you from the joint debt. Both you and your ex-boyfriend will need to do the best you can to pay down the debt.Your situation is similar of a divorce after a couple has been married for many years. The debts to creditors are joint debts. The parties who are divorcing can make an agreement to divide the debts and assets but the creditors in the end look at both of the spouses for ultimate payment in the end.