We have a racist roo...suggestions?

Anyone have a better solution for our racist roo? Well, breed, not race, but still. He's a creme legbar. He loves his olive egger hen, which frankly looks like a creme legbar with more brown in her feathers. He loves their two offspring, which look almost exactly like creme legbars. He tolerates the cuckoo maran.

The generic brown chicken, the welsummer, the black copper maran, he doesn't like. He flat-out bullies and chases Penny, the brown hen. If everyone is munching on egg shells, he'll peck at and intimidate away the three hens. If I give them a treat, I have to shoosh him and the other hens away from the three bullied ones so that the three of them can also get a treat.

The cuckoo maran is mostly blind and I think he gave up trying to intimidate her, she can't see him!

My husband caught him guarding the feeder against the three hens, so "his" three could eat! Husband chased the roo off and wouldn't let him near the three hens he targets, and then RooRoo went after my husband. First and only time he'll go after a person, and he's fine with my kid and me, overall a sweet calm bird. He's also got a quiet-ish crow and we really don't want to get rid of him BUT we can't have him bullying half the flock either. No other roo ever did this.

I'm planning to separate "his" three hens into the garage or under the trampoline for a few days, and leave him with the three he doesn't like and the oblivious one. Hopefully he'll start guarding and being a good roo with them. I doubt it. Does anyone have any suggestions on this? He hasn't hurt any of them, but he won't let them eat until "his" girls are done and gone, and he chases them off treats, and that's not going to fly. Any advice on how long to separate them or what else I could try is appreciated. He's just being a butt to my ladies.