Keeping commitments; at times life is hard; forgiving - I’m sure your sons respect you and their respect will only grow.
How not to be a martyr? Live your beliefs and values. I think you are doing that by the way.
Martyrdom, like victimhood, is a tough thing to shake. It’s kind of insidious the way it permeates and ensnares. It’s easy to die for one’s convictions. Living our beliefs and values is a much more rewarding path.
You are an excellent role model for your boys. A fine example of a man.
D
Feelings are fleeting. Be better, not bitter. Love the person, forgive the sin.