Yes you have lost something precious, but you can't turn the clock back. God is a God of forgiveness and new starts. You only have to read the gospels to see that.
I am sure that when the right woman comes along, that God will help you work through this. One of the most important things in a marriage is being able to forgive one another. There will probably be other times in your marriage that you let each other down and have to forgive one another. There will be other times when you have a sense of something beautiful damaged or lost, but it is not the end of things.
You will be able to build a close and joyful sexual relationship in the future with God's help. Right now you may fear no-one will be attracted to you, but they will.
With best wishes
Liz