Tenant has retraining order on another tenant within as lease

[Amy Xu]

Hello I have 2 tenants that were boyfriend and girlfriend. They broke up and the girlfriend moved out and wants to be off the lease. The boyfriend is staying and has stayed he is not going to pay the entire rent amount. He expects the ex-girlfriend to continue paying through the end of the lease. 

The girlfriend said she has a retraining order on her boyfriend. Can I legally continue charging her rent even with a retraining order or do I have to take her off the lease? 

TIA!