Like you, I will never understand how someone could love so deeply than suddenly lose interest for no reason...except that we are, at base level, animals...with powerful biological urges that don't disappear just because we promise things in the throes of romance and passion. I gave up on a lifelong love and will never comit to someone the way I did as a young man. And, at least thus far, I've never been happier...or felt more alive and free. You expressed the bitter pain of betrayal so powerfully in this article, it was moving in ways I can't quite explain.