Legal dispute between roomates

[Donald Bathe]

If a man and woman that arent legally married with no kids both signed an apt lease but one day the woman found out her boyfriend cheated on her, who or what can determine who gets to stay and who gets to leave then in this case if cheating doesnt void the lease agreement?  What can be done legally in this case as to determine who gets to stay and who has to go?

[Chris Seveney]

@Donald Bathe

If you are both on the lease then technically neither one of you can break the lease.

unless you had some type of morals clause in the agreement between the two of you, then neither party is forced to move and have a contract to fulfill.