how much he engages with his kids is up to him and not your responsibility. Put it the other way round (bit weird but go with me). If he had been the primary carer and so you only had limited time would you have sat back and felt hard done by or would you have done everything you can to make the best if that time? From reading your thread I'm confident I know the answer.
When my D3 was about 6 months old. I was sat with her and thinking how rubbish parenting all was. It was boring, hard work, restrictive and my wife had disappeared into someone I barely recognised (massively anxious and miserable). It occurred to me that its because I wasn't trying hard enough and that if I wanted to enjoy this I had to put a lot more effort into enjoying it. On that day i made a choice as to what kind if dad i wanted to be. 3 years later my D3 and S1 are my world and nothing makes me happier than seeing them smile.
Both mid 30s, 2 young kids BD 7sep14 XW moved on long ago, now living with OM1 D paperwork in progress
