One of my best buds (family member) is cheating on one of my closest most trustworthy best friend of five years, who I hold a special place in my heart because she is a girl that has proven herself time and time again to have more honor and honesty to me specifically than any other woman I've met. However, she's still a woman and women gonna do what women gonna do... but still I feel if any woman on this planet can earn it, it's her...

I feel I should break them up or tell her. Has anyone been in this situation and can you shed some perspective that may enlighten me? Should I care? should I have honor and violate Bros before hoes?

What is the stoic reaction that should be taken?