I've just come out of a household like this. As it wasn't my home and I couldn't live like that I came out. But if it were my home, they'd seriously have to buck up their ideas or find somewhere else to live. Because in my eyes that's disrespecting me and my home.
And I shouldn't have to feel burdened when I'm doing someone a favour.
And this is a major burden and inconvenience.

My son’s girlfriend (now fiancée) lived with me for almost two years .
But it was the opposite of your situation, good luck 👍

Time to call a 'house meeting' and explain that residency has terms and conditions. Sharing is just what it says on the tin.

Maybe.. let them know and creat your boundaries.
let them know you're disappointed in their behavior

Boundaries and limits! Your house your rules.

They both need to respect your property or move out.
Hopefully you are at least charging them rent ?

Time to dust off the old chores list...