Congrats on your girl, my grey is a dna'd female and she is bonded to me but tolerates my hubby, she has never bitten me or anyone, sometimes its just a matter of paying attention to their body language and backing off when they display signs of displeasure, just like us we have our times we don't feel like being messed with and thats their way of getting their message across.
Does she really dislike your husband? She may not like him as much as she likes you but he can still have a good relationship with her if he respects her space. Let him be the one to give her treats, he can sit by her cage and talk to her, read her the newspaper or a book but I imagine she will be more tolerant of him when you are not around.
You don't have to worry about any egg laying issues for a few years yet and she may never lay an egg so don't cross that bridge until you get to it, at 5 months of age she is a long ways away from it.