Having courage is hard, resolve - personal belief - determination can all help... but being courageous is the willingness to do something despite fear.
I hope he will have the courage to step up and be the man you deserve. I hope you will have the courage to do what's right for yourself if he does not.
But above all, forgive yourself... because the only people who ever suffers when forgiveness is needed is the one who can't. You've done the right things, in owning your part and learning from it... forgiveness seems to be the only thing eluding you at the moment.
Warmly,
Victrinia