Is it normal my mother called our house a brothel for letting my bf sleep over?

I am a 22 yo female, and I've been with my boyfriend for 2 and a half years.
My parents and I live at a house near the city, but sometimes I sleep in our old apartment downtown.

Last night I cooked my boyfriend dinner at the apartment, but the recipes took much longer than expected, we ate dinner at midnight, so I let him sleep over.

I admit, this is not the first time I let him sleep over, and my mom was never pleased, but she kept giving weird excuses,like "the house is not clean", even after I cleaned it for Christmas, or "the sheets are not clean", and not letting me change them, stuff like that.

But today she came home and started yelling at me, saying stuff like "this is not a hotel, and not a brothel either, I don't want him sleeping over". Then came the usual stuff, with her yelling at me for every little thing.

I know I should not do things without her permission, but she is always so unreasonable amd honestly I feel old enough not to need so much policing. My parents almost never come to the apartment anymore, but they won't let me do anything here ( like move stuff around) and they always expect it to be clean but get mad if I don't go to the house to spend time with them and instead go shopping or cleaning at the apartment.

And it really really hurt that she basically called me a prostitute for letting my boyfriend sleep over. And he is a good guy too, she likes him. My mother is never happy with anything I do and doesn't want me doing anything except help them around the house.

What do you think? Is it my fault?
Sorry this story is so long.