Any advice concerning my ex?

Okay. Here’s the story. My ex and I broke up almost a year ago (to those who are curious, she was the one who broke it up). Now, she recently had a crush on a guy who IN TURN likes a girl who some people deem as a “slut”. Okay, the term is demeaning, but this situation is getting her quite upset and everything I have learned in the past 14 years I have lived is really not helping much. She’s really sad and all and I still love her (if she finds out this website, I am so screwed) so I am asking you all to please…please give me suggestions in how to help her out of this depression.