From experience this appears to be a ‘looking for an argument’, type thing.
I deduce you’ve previously had guests around and expected her to clean up before hand.
This would likely to of included your things as well as hers.
From the OP, is it true then to say, there are none of your things lying about? If that is the case, who tidied them away?
If you did it, then why not hers to?
It would appear then she feels the relationship is a little one sided and feels you may need to do a bit more around the house.
She is using the fact your mates are coming round to a potentially untidy house, as a ‘you’ll be having fun tonight, whilst i’m doing house work’ statement of being pissed off at you.
Surprised she’s not the one getting violent with you(from
experience)