I needed to find a way to express myself, and to tell someone what I felt and known for a while now.

I've known of my best friends other half's ways. I can't begin to tell you how many times he's cheated on her and I'm supposedly her best friend and ive never told her.
It's selfish of me to have not said anything because I don't want to be the one that exposes it. She's in constant pain and the only thing I can do is keep quiet as she cries at night and he's out with other people.
What can I do?? What should I say?? I wouldn't want anyone to do it for me, if my relationship was falling apart I wouldn't want someone else to drive the last spike, that's why I don't say anything.
That being said, the anger that I carry inside makes me want to go to her and just ravage her, in revenge of what he has done. But being her best friend and also in a relationship that has always stopped me.


Knowing what he does and never telling her, makes me worst than him.
This guilt and anger makes me sick!