Except, one of the women who rented another room worked with one member of the lesbian couple. It turns out she was married and had a kid with a man, but she got hooked on drugs and it ruined her marriage. But all she ever talked about was how she was going to get back together with her ex-husband, and live happily ever after. (He was already remarried.)
So, apparently, she was straight all along, she was just pretending to be lesbian to use other woman.
From what I remember of her, she was a one-hit wonder.