Bathroom planning Arrangement of sanitary fixtures

And I also don't consider a bathtub in front of a floor-to-ceiling window a happy solution. Ever thought about a corner bathtub? They have a leg dimension of about 150cm.

That's right, and a corner bathtub would therefore again only represent a compromise or a necessity to somehow fit everything in there at all.

Persuade the better half to have a privacy screen at the toilet, that must be enough. It can be a bit taller.

...and then it can become a spacious bathroom. I also don't quite understand the whole background with the toilet. Ok, you can still lock a second door behind you but then no one can enter the bathroom during that time, right? Then it might be surprising for the second visitor if someone suddenly comes out of the toilet while they are just showering or doing something else. Planned differently, one could prioritize placing the toilet near the window and wouldn't have to wait for an internal ventilation to do its job, and in the meantime the whole bathroom would be a no-go area anyway. Often, you have one or the other experience in mind and want to prevent exactly that one and thereby only create other problems; in this case, you would build a very cramped toilet with a third sink!! where you cannot turn around or have to walk around the door to close it and fill the rest of the bathroom with corners and edges so that it somehow works but nowhere receives sufficiently comfortable dimensions. If the shower is to be built as open and walk-in, the next problem would arise at 110cm length and a half-open access with a radiator at the edge.

The door to the bathroom just barely opens. Please imagine or check at home how you enter there and then close the door behind you. You have to be careful with your belly and knees, it almost collides with the toilet bowl. You could install a space-saving door but that is also a compromise.

To be honest, I don’t know if it is allowed to post a picture from the internet, but I don’t know how else to describe the idea alone -> a sliding door for both the shower and the toilet ... maybe a variant for you?

The sliding door seems to me almost the most elegant solution. Otherwise, Climbee has already said a lot of important things.

This 2-person tub that you sketched, we also once considered it. Please try it out in a bathroom showroom (i.e., lie down), it is totally uncomfortable. Still too small for two, somehow weird alone.

I can agree with that. In the end, we took the standard tub, just one size bigger.

I would ask the partner why a separate WC is "set" for her. There must be some reason behind it; maybe the underlying problem can be solved differently.

The nicest solution is definitely the sliding door ... but with my clumsiness, I would first be worried about my bare toes in the bathroom.

Secondly, no one is allowed to shower when the shy partner is sitting on the toilet, because otherwise the door on the other side is closed and the water splashes out.

If someone is in the shower, it doesn’t matter if the door is open, then you are "separated."
It’s more like when someone is at the sink with the door closed, the door, and someone just needs to grab or bring something in/out of the bathroom...

If you can close the toilet door, you don’t have to lock and "block" the entire bathroom...

That’s how I would put it...

Oops.... the lady is so shy? Don’t you have a guest bathroom?

Well, we have no problem if one of us needs to pee - we do the big business discreetly in the guest bathroom.

But then it will always be a problem.

And when you get closer to each other in a partnership-physical way, the light has to be off too, right?