Last week I found out my boyfriend had a trio with my best friend and sister in my apartment while I was fast asleep in the next room. This happened about two weeks prior.
My best friend decided to come clean as she felt terrible about it. However, she also told me after they got finished.
My boyfriend and sister jumped into the shower together afterward, and according to her, they did it again in the shower all while I’m still asleep in another room.
My sister had asked her to join in again, but my best friend said no and went to sleep. Since finding out, I’ve cut off my boyfriend and my sister but don’t know if I can keep my best friend in my life. Although she finally came out about it and showed remorse. I’m still hurt about what she did with him and don’t know if I could trust her again.I confronted my sister and boyfriend, and they originally denied it but have since told the truth. That they did it twice! Although I suspect it’s been more than that. I believe they were hooking up constantly during our relationship, but they claim it was only twice.I can’t believe they acted normally the following morning as nothing had happened. My best friend was acting strange, but I thought nothing of it.My sister had reached out to me through a fake account and, instead of an apology or show remorse for what she did, said since I didn’t want a relationship with her anymore, she may as well go ahead and be in a relationship with my ex-boyfriend! She then proceeded to tell me how my ex-boyfriend told her that it was better with her and how he thought she was the hotter sister. He even told me what they did in the shower. She’s disgusting.My boyfriend has also tried reaching out to me, begging for me to come back to him. A family member informed me yesterday that my sister has tagged my ex in relationship status on Facebook and put a picture of them together as her profile picture. She even uploaded a picture of them in bed together. He was not dressed, and she had a bracelet on.The disrespect is insane. I’m heartbroken and will never speak to my sister again. Now, what should I do with my best friend? Should I continue my friendship with her or cut her off too?