Your DH sounds similar to mine - the inability to say how he's thinking, the vague attempt to do what you want (leave for work earlier) then slipping back to old ways without giving an explanation etc. it is very frustrating, especially if you are the kind of person who likes to 'think aloud' about how to improve things.
I have found the most effective way is to simple state in clear terms exactly what I need him to do. He will probably then deliver it, but i have given up expecting him to tell me how he feels about it. You won't get a "that was a good idea, it has really improved our lives", or even the opposite "this is a real burden on me and I don't want to do it". Or, more practically, "I can't do x this week, but hopefully can manage it next week.' He'll just try to do what I want, if it's possible, but not expect any discussion about it.
I have to admit I still find this annoying, because really what I want is for him to admit how he feels and, related to this, get him to acknowledge how I feel (or how he thinks I feel).
I think my DH copes with life by kind of avoiding the difficult emotions and just focussing on the practicalities of life. A sort of stoical stance. It can be interpreted as selfish and self centred if I am not careful, but if I grill him, he is adamant that he just wants everyone to be happy and is working hard to make sure we are all taken care of. But Because he is not looking for me to congratulate him on this, he doesn't think to congratulate me on how well I am doing, or how difficult my work/life is. I, on the other hand, like to state how much I have done and how difficult it is, and for that to be acknowledged, then I feel better about it. Feels a bit embarassing to admit that, but I know that is how I am.
The job of looking after two little ones is a daily grind and very thankless, which won't be helping, but it doesn't sound like your DH is a bad guy. Just not very empathetic.