Wait, so one of the bedrooms is 100% his and the other one you share? That'd be a no from me.

My husband and I have additional bedrooms and given that we are both introverts, equality in space is very important to both of us. We could have had separate rooms (and a shared bedroom for sleeping) but we've opted to use foldable wall dividers to divvy up our private space. It has been trying at times, but as long as both parties have ways of saying "don't bother me right now" it has worked out. It helps that we are both computer people with noise canceling headphones. :)

For my situation, having equal ownership of the rooms + just being able to separate to whichever room we want (or even segment the room itself to feel like a mini room) is enough. Both of us would be resentful if one of us ended up with one of the rooms without the other person having a room of their own too.

We do have two bathrooms but while one I primarily use and the other he primarily uses, it's not something that's a hard and fast line. All of my makeup and personal products are in one bathroom and that's the one I will almost always use. His personal stuff is kind of divided up between the two, but his toothbrush etc. is in the second bathroom. We've never had an issue and I haven't really needed to have a statement that goes "THIS IS MY BATHROOM!" He still ends up cleaning the other bathroom most of the time too, lol.

The heart of it to me would be (and I'm totally projecting here) would be feeling like his needs of having personal space are being recognized and yours are not. I would first focus on getting this recognized and then reflect on what the best compromise would be for both of you.

It may be the bathroom and it may not, depending on what would best make you feel like you have equitable space.