Diamond.... If that's your real name, remember its meaning. Diamonds are strong, the only thing that can cut a diamond, is a diamond. You are strong. You had 5 children, that's proof enough.
I see your pain, as I've been in a similar situation of not being wanted by the man I loved.
But you have to find a way to love yourself and your children first.
You are coming here for support, and everyone is telling you to think about YOURSELF not about him and your responses keep going back to how you feel about him, him, him.
Lets talk about you.
You don't need him to go to counseling with you, you go by yourself. You will learn more about yourself then you ever thought you knew.
Most counseling I've ever attended, works from the perspective of each person taking responsibility and fixing his/her actions. Not finger pointing or trying to force a person to do something he is not ready to do.
So start by fixing you. Do what's right for you.