I've read through the thread and... decided to post hoping it helps you get through a bad day or two:
I married a serial cheater too. Serial cheaters are Cluster B personalities or so I've been told. She was fond of saying stuff like "Married 10, together 13". After 27yrs of marriage, her mask finally slipped and I saw the real person for the first time. Once the reality set in, I couldn't see her for anything other than what she was.
She was a cheater from the beginning. She was a liar, pathologically so. She was doing this while I was in the USAF, in school, while she worked at 3 different hospitals, with a guy in our Bible study, multiple times visiting her best friend (who I knew and liked), dating sites etc etc etc.
I caught her after a lunchtime tryst with a random guy from Ashley Madison. She responded exactly has your husband... like a child who was being scolded, looking down, saying the same crap your husband told you. When I exposed her, she said "You ruined me. You ruined me. You ruined me." We spoke for 3 days. She was not remorseful. She smiled while being vague about the encounter. She said she liked that "... he was not disappointed in what he saw" and on and on.
It was life shattering. I was heartbroken. It was surreal. Humiliating. Fully and wholly emasculating. Our family was obliterated (20-27, including a daughter with Down Syndrome 22 at the time). On the 4th day, she called the cops to the house, had me arrested, and I was indicted with 22.5 years worth of (3) felonies (I'll be happy to discuss later). In court, the victim's advocate said my wife feared for her life and said I would "... shoot our [daughter with DS]". Protection orders were placed on them.
Our children rallied and helped her pack. She took everything and moved back home. My children believed everything she said (I'd learn they loathed me during this time). After all I was in jail. I spent 117 days locked up. She left me homeless and broke.
Fast forward ~5 months... she overdosed on fentanyl. Our daughter with Down Syndrome fended for herself for two days before anyone checked on them. Quote "Mommy was rude, she slept for two days straight". She was stuck in a 2 bdrm condo with her dead mother on the bathroom floor, leggings at her knees... apparently she fell off the toilet.
There is much more... skip to today, 3 years later, the trauma was extensive. Per the suggestion of a wonderful therapist... to become a family again, we needed to live together. We are now in Florida, have been living together for 2yrs and change. Humpty Dumpty (what we call our family) has largely been reconstructed. We are thriving.
I tell you this because I want you to know it does get better. As bad as the day might get, as dark as the future might seem, keep your head up. Whatever you do, don't stop moving forward, don't quit, don't throw in the towel... you will be bigger, better, faster, stronger (so to speak) when you come out on the other side. I hope this helps a little bit.
[This message edited by Apollos at 7:26 PM, Tuesday, January 30th]