Family Relationship memes

I saw my girlfriend walking by. I told her, "Wow, you look so beautiful!" and then we started to talk. Then someone came behind me. She said, "What are you doing?" I said, "I'm flirting," and I remember I was talking to my mom, and my girlfriend was HER MOM, which is my sister, but my girlfriend/sister IS MY WIFE, but my mom is my wife too. Looks like I'm getting a divorced but which one, my girlfriend [or] my mom?