Gloria
When we come from abusive relationships, we are so used to being abused or taken for granted, that when we're shown love and respect we don't know how to handle it. We often then turn around and do the same thing to others that was initially done to us.
It sounds like you recognized what you had done to make him end the relationship. Did you consider therapy or did you go through therapy? It's sometimes the best option for straightening these types of things out.
Can I ask what made your lost love such a great man?
Good luck in finding a job. I am sure we're all pulling for you.