I totally understand your feeling.
I know a friend, who was deeply in love with a guy, she was willing to do everything for him. He dumped her like pair of old shoes. She lost 20 lbs in 2 weeks and was deeply depressed, and she had exactly the same feeling as you have right now.
However, she moved to a new city months after leaving her old guy and met her current hu*****and. It was love at first sight. He respects her and adores her, they got married 1 year after they met the first time, and are still happily married. They have kids, house, good jobs and everything now.
I ask her how she felt about her painful experience. She said "it was probably God's mercy to save me from a bad marriage and bless me a good marriage", she confessed even she couldn't understand why she was so crazy about that guy years ago, he is no comparison to her current hu*****and.
So, the best love hasn't come yet, just keep on looking.
Best wish!