@HelloDizzy
I once lived with a GF and my mother on the same home. She was my 1st GF and I was her 1st BF, therefore it was very romantic and passionate in a fairy-tale style. Decades before me and my GF were even born, my mom and her mom used to work together, were also neighbors and good friends. Her mom died when she was 4, but her family remained in the neighborhood. So this was a girl that my mom knew very well. AT the time I was in high-school, senior year, about to graduate. In before having the GF, the plan was to go straight to college. But after having GF, my plans change and now I had a part time job and I was saving money to get an apartment so we could move together. I had several jobs lined up to start working full time right after graduation so I could afford our own place. She was a couple of years younger, still in school, unable to contribute economically.
My mom saw all this, college plans being screwed, she new the girl her whole life, etc. So one day my mom said:
"Why don't you bring your gf to live here with us? Then you don't to get your own place, or get a job to pay for the place, or delay college to pay for the place".
We accepted... it was hell. My mom was always trying to belittle everything my gf did. "Your cooking is bad"... "You didn't washed his clothes correctly"... etc etc. It was like my mom was jealous of my gf. We ended up moving out and going back to the original plan, getting a full time job and delaying college.