There is no nobility to hanging on to a marriage in which your partner is cheating.
And i disagree 100% with calling those that are standing by their marriages with spouses that are cheating, and lying and gaslighting as amazing. Codependents maybe. Masochists definitly. Afraid of being alone? Yup. Afraid of grieving and moving forward? Check.
Personally, i think having the courage to pack your bags and leave and not tell him where you are is amazing!!!! I wish your post was read by more.
Your friends that think you were punitive are just wrong. Dead wrong. There are posters here that have contracted Stds. I have an acquaintance that found out she was hiv+ when pregnant. People whose Whose financial security has been sqandered, young kids that become anorexic or start cutting themselves, or are suicidal. All because one spouse is a narcissistic, lying selfish prick that needs a self esteem boost.
His continued appeals and contact is such B.S.. I hope you don't fall for it. Easy to because we want to believe. Just use no contact to get yourself into a position where any of your remaining fog is lifted and you can really see what happened without the emotions and continued grief. Think years not months.
Good partners, good people dont do what he did. You deserve someone that is as loyal as you.