What to do when tenants end up splitting up?

[Emanuel Valdez]

I am currently renting out a property to an unmarried couple and I just recently found out they broke up and he decided to leave the property and cancel the services he was paying for. They're under a two year contract and so far they've been there one year. She is still living in the property and paying rent but they're both showing interest in signing a new contract to live at the property individually. What's the cleanest way to go about this without breaking any legal requirements?