Wth

Oops I made a spelling mistake i mean why are they calling him a she now.Σ( ￣□￣||)

This is a machine translation so there's plenty of other mistakes too. A machine can't see who they're talking about so it guesses the pronouns.

They stated earlier that her mom is called the emperor because she is of royal blood and takes control of matters relating to politics and whatnot and her husband is empress because he fills the position of empress. It’s a title so I’m guessing they’re using the pronouns to match the titles now vs before when they weren’t. Translation inconsistencies too

I think because of the positions being reversed, the machine translation is also changing the pronouns with it. And the person uploading it probably doesn't proofread them. So the grammar mistake stays