I’ve looked everywhere and can’t find an answer. I’m on generation 1 and had a second sim, from the beginning when they ask you to make a roommate. My sim has now found love and wants her wife to movie in with her, but I’m not spending 175 cash to get a new cash and I honestly just want the roommate to delete or move out.
Once the sim retires it will give you the option to move them out. (Can’t retire until level 16)
You will have to retire the roommate and then you could try moving your new wife in. I tried to let my friend move in and it seemed to work. So try it!