I'm glad your H. apologized, but I'm not sure that having a trying week is a valid excuse for not checking in after your daughter had a meltdown, and it hardly excuses any of the other ways that he hasn't lived up to expectations.
I'm not saying don't take the apology - it's certainly better that he apologized than if he didn't - but do keep looking at your feelings. I was struck my your point that "It didn't have to be like this". That's really simple, but so true - it sounds like he hasn't given a lot of really important support for awhile now, and things need to change if this is ever going to work in a way that supports you. You know what changes need to be made and what support needs to be given, and I hope he realises it soon too.
M - 34 H - 36 Together 10 years Married 4 years BD - March, 2014