When you say you would never forgive at all, I guess I am reminded of the phrase, "never say never". As wonderful as you are, I doubt that you or Mr. VB are perfect, and you yourself might be in need of forgiveness someday for somehow hurting your hubby. Maybe you'll go through some type of phase, who knows?
When you see a couple that has been married for 40, 50, 60 years with adult children, grandchildren, shared memories, estate, assets, sitting as a glorious and uber-respected family patriach at a family reunion, you can rest assured that at some time during their relationship one or the other was hurt and maybe ready to leave, but decided to forgive and yes, salvage the marriage, and were able to grow and be even happier than before.