PLEASE experienced guinea pigs owner help me out. URGENT?

Now i just brought home a "male guinea pig" for my exsisting male guinea pig so for quarantine i halfed the cage by a wire so they couldnt have contact but see eachother. and suddenly my original starting rumble strutting and trying to break the wire so i got out the new and its a girl! WHAT DO I do I ONLY HAVE 1 cage and i really dont want to trade the girl in she is so pretty! please help me!