I think one of the biggest issues, especially with small children is getting enough sleep. Facebook popped up with a post I had made some years earlier which said, "All the kids slept through the night last night. I'm one happy mama!" My oldest was 12 years old at that point. So for 12 years, getting a full night's sleep was so uncommon that I had made a post about it.
In fairness, I have a child with Cystic Fibrosis, who often required round the clock care, and one with asthma who was always sick during winter with croup. So there were some extenuating circumstances, but I was exhausted all.the.time.
That's a problem. It sounds like you guys share night duty. My ex felt like he had to get up for work and I didn't, so it was all on me, even on weekends. Clearly I agreed on some level, but after years and years of no sleep, I was a shell of a person.
Honestly there isn't much about my life path that I would recommend to others lol.