I agree there’s no way you can stop your bunnies from having more babies unless you have at least one of them de-sexed. If that’s not possible you simply can’t let the bunnies spend even a minute together.
It does sound like your male is “in love” with you and wants you for himself. If you hubby decides to try and bond with your male, he should wear gloves, long sleeves and long pants and shoes. It’s the bunny that goes in the box, not your hubby. This is a method for bonding two bunnies that don’t particularly like each other, the idea is to add something that scares the bunnies (like run a vacuum-cleaning) so they seek comfort in each other. I don’t know if your bun will seek comfort in your hubby, but if your hubby wears protective gear, he can show the bunny that aggression gets him nowhere, the hubby stays put and is not scared off (the bunny thinks he’s succeeded in scaring an opponent away if the opponent leaves). Don’t punish the rabbit, just don’t let him get away with being a bully.
This is mostly hormone-driven imo, and that’s not really sth you can get rid of with training. It might subside to an extent as the bunny gets older, bunnies just like humans don’t stay teen-agers forever.