not every relationship is such a hardship
Do not let this one bad relationship affect what you are inside. If he is a spinless jellyfish of a male then kick him to the curve. As my grandmother always said: there are 4 or 5 more where that one came from.
Be well within yourself. Realize that you are blameless and you need time to heal from the hurt. Then be the old but wiser bull rider who knows when to get back on the bull and ride for glory!
be well and cherish your time!