FatPenguin, we're in the same boat. If it's one thing I've learned about dating, it's that some of us have to go through the deep, deep forest of heartache, heartbreak and disappointment before we find our match. I had an experience years ago where someone I truly cared for ended it suddenly because he decided I wasn't his type (this was after he expressed much interest in marrying and having children with me). BUT, I'm over that. These days we're friends. There are still qualities I admire in him, but I don't feel a smidgen of affection for him anymore. I have closure.

Give yourself time to recover and while you do, identify the qualities you found in her that you would like to see in a new partner, and identify the qualities you didn't particularly care for and may be deal breakers in a future relationship. I think that exercise will be beneficial in your new search.