AITAH for asking out housemate not to have his girlfriend living out of the house?

So our housemaid has a new girlfriend and she is over more times than she’s not. She has cereal in her kitchen and taking up space in the fridge takes 20 minute long showers and parks sometimes in the driveway we’ve only one parking space and 3 cars. Her stuff in our bathroom and is generally just here too much.

Are we the are holes for asking him to only have over two or three days a week? Our house is big enough for five people and she’s not paying rent or bills. We just feel she’s moved in with her stuff in areas of the house. It’s not much but it’s annoying to pay rent for someone to leach out of the house. And she also doesn’t get on with any of us and makes no effort to get to know any of us.

Anyone know how to approach the topic?