Tony and Carmela are currently married. She has $7$ units of output and he has $4.$ If single, they would each have $6$ units of output. Divorce happens by mutual consent only. We can say that:

they will divorce and they will each have $6$ units of output

they will divorce and Tony will give Carmela at least one unit of output to convince her to consent to the divorce

they will stay married, but Tony will give Carmela at least two units of his marital output to keep her in the marriage

none of the above will happen