Sharing nighttime duties

ldoo

I have this thought in my head that if DH and I end it, he could come to my house after work each day and spend time with the kids, help with their dinner and help put them to bed. Then go home. I feel like he might actually want to do that, so the girls have some semblance of normalcy. They're so young (19mo and 3yo).

Is this crazy? Has anyone done something similar?