Dear Diana,

I recently broke up with my BF because I felt he was flirting with his crush, who, by the way, is less pretty, smart, talented and appealing than I am. So I'd get really mad whenever I'd think about the two of them together. I saw pictures of them talking or sitting next to each other, candid shots taken by some of our friends on Facebook. He told me he was just being friendly, but I still got mad saying he had always known how I felt about the two of them yet he continued to "be friendly" with her.

I also claimed, that by doing so, he showed just how irrelevant my feelings were to him. He said I was being too jealous. Was I? We broke up last April. Not too long after that, he planned to hang out with her one entire day. They were together for hours. Why did he take her out if they were only friends? I have heard they even went for a movie. I know I will NEVER find peace until I've avenged myself, but for now, I'm heart-broken. Any advice?

Name withheld