Help!!

We're 3 best friends all female and I'm stuck in between major drama.

I'm scorpqueen, best friend a. is LA and best friend b. is MZ

We've known each other for at least 5 years, the whole time MZ has been on and off with her loser, good for nothing baby daddy. Out of no where best friend a. confesses to me that she has been sleeping with best friend b.'s baby daddy. I'm shocked!! She asks me to please not tell her anything and keep her secret in confidence but I can't for the life of me be okay with this.

My loyalty is torn but I would want to know if I was the one getting cheated on.

Should I say something or stay out of it??
scorpqueen scorpqueen
31-35, F
May 15, 2012