theydeserve the experience you've just shared sounds pretty rough.
Let me tell you what happened to my DH. His wife left him for another man. By the time I met him, two years after the divorce, he was struggling. Yes of course he wanted to see his children, but he also ran (and still runs) a small building firm, requiring a long working week. As I said earlier in the thread, when he was married to his first wife, his work ethic was praised, and his first family enjoyed the fruits of his labours. His first wife didn't complain about the hours he worked.
However when I met him, the ex had already had one baby with her new man, and was expecting another. Fair enough, her prerogative. But she was extremely keen to have Thurs-Sun EOW with her new family and had no interest in DH's working hours, except that he was able to provide generous maintenance payments. The ex didn't, and still doesn't work.
The real problem was the Thursday 4pm pick-ups. She expected DH to collect DSS at 4pm, even though 4pm on a Thursday is not the end of the working day for most people, and definitely not DH. It was always "if you don't collect him at 4pm, you won't see him this weekend." DH didn't want that to happen, so would quite literally down tools, leave site, collect DSS from his mother's, take him back to an empty house, the go back to site and work til the early evening, leaving (at the time) and 11 yr old home alone with no tea til really late. As the ex didn't work, there was no reason why DSS couldn't have stayed at home til DH finished work.
The arrival of her second baby coincided with Feb half term. She decided, at the 11th hour, that DSS should spend half term with his Dad, knowing darn fine that the building industry doesn't have half term holidays. So DH dutifully collected DSS, and DSS spent the entire half term holiday alone at DH's house. DH actually said that if he'd known about the baby's due date, he could have been a bit flexible, but the ex kept the due date to herself and landed this on DH with notice.
There was also the time she abandoned DSS at A&E; he'd had a mishap at school, the ex spent an hour at the hospital, then decided DH should take over, only DH was, as usual, completely in the dark - he didn't know there had been an accident, nor which hospital.
You get the drift. It's not just mothers who get dealt bad cards. Dads get some shit too.