A man without compassion, whom you describe as spiteful and temperamental, is not a man I would want to spend my life with. The universe just did you a huge favor in the only way that would save you from a life of. Living with a sanctimonious self righteous shamer.
You did wrong. You asked for forgiveness. You are contrite and that is all you can do. A mistake should never define us and it definitely shouldn’t be something someone who loves us is violent or degrading to you about. This wedding is off and in my humble opinion, it is a good thing. I have no doubt that you will never cheat or lie ever again in this manner.