When I met my ex we were both 23. Neither of us was very good at cooking or particularly interested in cleaning. Neither of us had a responsible job or any other responsibilities. We moved into a cheap and nasty flat together and spent our money on eating out, going out together or going on holiday. We were equals and things went well. We shared jobs equally.
As things were going well we decided to try for a child and were lucky. We moved into a nicer flat. Ex got a more responsible job at this time, and also kept up with some evening work he'd been doing just for extra cash. It made more financial sense for me to stay at home with our daughter.
That's when things changed. I was at home, so "obviously" did the housework, as he was out all day and many evenings. Through practice, I got better at cooking and cleaning, ex got worse. We had a second child, so I didn't try to return to work for 3 years. Now we had less spare cash. We didn't go out as much. We were both tired. We didn't talk as much. He stayed at work longer. Obviously these were not problems we had before we had kids.
By the time I tried to start work again, he was earning enough that my few hours always came second. I tried working in the evening but he would arrive home late and I'd have to take the kids with me. I tried working in the morning, but when the kids were sick I was always the one to take time off as he "just couldn't". Obviously these were not problems we had before we had kids.
I found another job working from home, cementing my role as person in charge of home stuff. By the time we moved home again he was working even longer hours and no longer doing any cooking or cleaning. I couldn't do anything regular in the evening as I was caring for the kids. I felt that I should be an encouraging, unselfish partner and support his career plans.
Taking up a great opportunity, he took a job in another town, coming home only at weekends. I was now in sole charge of the home and children. At the weekend he was knackered, which I understood. He'd also doubled his weight since I met him and was unhealthy and lethargic when not at work. I felt like I didn't have a husband, and tried to get him to return to our town, but he saw this as me nagging, complaining and failing to support him. He withdrew even more and hardly even spoke to me and the kids.
At no point did I select a hopeless husband. What was my stupid mistake in this story? I'd love to know how you would have done things so much better than me.
End of story: he found an OW and mentally tortured me for a year until I found out. Now divorcing and enjoying trying out bfs who place value in spending time with their partner.