For me it was when he got caught meeting up with more and more new women after he swore he wasn't doing it anymore and after we'd been working on the marriage together and separately in therapy for months. It was when I caught him still doing it, he pretended he was suicidal and checked himself into a hospital for a week, abandoned his son on his 2nd day of school, promised when he was in the hospital he'd try to get a job, stop seeing other women and make it up to us, and instead - on the day he checked out of the hospital to go and live with his mother instead of us - he bought some viagra. Now who did he need THAT for?? He has been out of the house for over a month and seen or talked to his son only a handful of times. He is continuing to meet new people, tell new lies, and spend more of my and his mom's money. It's taken a long time to get past the denial stage and accept that the man I loved is gone. The body is there, the mind, soul and spirit are dead. The harder part is how to explain it to my son someday.