My ex-boyfriend is in love with my best friend.

I suppose I had always suspected it. Since our first year of university they have been close friends. There was talk of the occasional brush of a hand against a leg; a farewell embrace lasting a little too long; constant emailing over the holidays. But he had a girlfriend, and by the time he had broken up with her, she had a boyfriend.

So he started dating me for the sole purpose of getting closer to her.

Sadly it wasn't that simple. The way things turned out I became far too emotionally attached to him. He broke up with me after a few months. We stayed in touch until today, when I found out that at the New Year party they had both attended, he had been hitting on her in front of her boyfriend. I am wrecked.

I can't talk to him any more, and so I have lost one of my closest friends. I guess I should choose my friends more carefully from now on.