No! Remove this rooster! If you read Temple Grandin's book, Animals in Translation, it shows proof that rapist roosters are the result of bad breeding, and letting them stay with the hens will just cause more aggressive roosters. They hurt the females, and don't grow out of it because it's in their genes. Please, remove the rooster for the sake of your hens!
Rooster "taking advantage" of hens.....normal? - Page 7
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Rapist roosters go into the freezer. End of story. It really sucks waiting 6+ months to find out your rooster is a monster who doesn't respect the hens. I just had to separate a BCM roo that I was hoping to mate to make more BCM and olive eggers. I heard my easter egger screaming during feeding time, and there he was on top of her, then he want after her again and the poor bird couldn't even get up. There was no dance, he was chasing her around, grabbing her by the back of the neck while she shrieked, and forcing himself on her back. Grabbed Mr. Rapist by the feet and out he went. He's in a box by himself until freezer camp time. If he were human he'd be in the ground right now.
i didnt read through all of the comments, but came across this article which is both enlightening and disturbing - maybe it will help us all to understand our roosters a bit better: http://www.grandin.com/inc/animals.make.us.human.ch7.html
some of what he has to say: The rapist roosters violently attack hens and injure and even kill them. Before the 1990s there weren’t any rapist roosters. They just suddenly appeared out of the blue. First it was just one strain of roosters that had become aggressive but within a couple of years almost all strains had developed the same behavior. Nobody knows why.