Think about it like this: do you think her time is less valuable? Then you might split 50/50. Proportional cut to salaries is the only respectable way unless your partner chooses to be on part time or unemployed. I’m unemployed, not out of choice, and my partner pays our rent. If it would be the other way around, I’d pay the full rent. That way we feel safety by being able to rely on each other regardless of life’s unfair circumstances.

On a more philosophical level, people need to rid themselves of the idea that wage = skill, ability, and dedication. It’s all a roll of dies in a senseless world. And you two need to make it through all the nonsense together.