<human>: Almost two years ago, my best friend, lets call her Rosie and I bonded over the fact that we were in relationships but were still in love with our ex boyfriends. It wasn't just still being in love, it was also feeling guilty about the way we had treated our ex's too. We would often talk about what we would do differently, and how hard it was to still see them, sexual fantasies that we had about them, etc. 

My fiancée, was aware that I had started talking to my ex again, there had been a death in his family. I ended up leaving my fiancée to try things out with my ex. It didn't work out. Rosie ended up meeting up with her ex quite often and played down a lot of what she did with him to her boyfriend so she didn't get in trouble.

Rosie and I, are no longer friends anymore. She outted me to her boyfriend about things that I said to her about my ex while I was still with my fiancé because she was angry with me. I have not outted her. But now, her boyfriend, a friend of mine for years, thinks I'm scum and refuses to have a friendship with me.

Give me a shortened version of the text
<bot>: Should I tell him about what she got up to to clear my name? Or should I let sleeping dogs lie and be the bigger person.