gotta be careful with that pair. They *can* hybridize and you'll want to be very careful with that.
So long as they aren't physically hurting each other (like tearing out feathers, pecking eyes or feet type thing) then they should be okay. Six (cheeked penguin hen) is very bossy but she never really hurts anyone. On the other hand, PLucky has been knwon to tear out chick's feathers.
I have found that once males and females are separate (I do this in the winter to condition my hens for breeding the following spring) there isn't any problems. I have one society male and his two 'buddies' plus Plucky in my bedroom and they are all fine and happy up here. The hens are all downstairs finnishing off the weaning of some late-season chicks (would have left the males in but the hens kept going back to nest or the maes would hurt chicks). So, now, I have two cages of bears and PEACE.
Maybe you could take out that one hen. I've found that PLucky is very, very protective over Peepers (his mate) but not so over other hens or birds. Maybe if you got a bengalese cock for that hen, she'd leave that male and he wouldn't be so protective over her.
Just an idea.

Kim