Is it normal that my mom's girlfriend is my sister's former girlfriend
I'm an 18-year old girl that lives with my mom. Mom is 44 and her girlfriend is 20. Her girlfriend practically went straight from seeing my sister to seeing mom. She's sleeping with mom at our house nearly every night. I find it strange. But I guess some of it is bc I'm jealous and I really wanted her and she's with mom and I can't have anyone over to stay the night either. It's like I'm so attracted to her, yet I see her kissing my mom and it bothers me.