my ex-boyfriend is sleeping with my friend

Dear Toni,

This new year couldn’t come fast enough! I just found out that my ex-boyfriend has been sleeping with one of my close girlfriends for quite some time, and now all my other friends are upset with me. I feel that this close friend violated my trust, but the rest of the women in our circle think that I just need to get over it. I couldn’t care less about my ex, but what I do care about is common decency. If nobody thought there was anything wrong with this situation, then why was keep it a secret from me for so long? Instead of making New Year’s Resolutions, maybe all I need is a new group of friends?

R.S.