When our child was born I wanted to started changing the nappies but my wife said that I cannot until the baby gets older so I still have not. My wife hardly ever expresses into a bottle so she has always told me not to work up at night BUT even then I will work up (not all the time) and ask her whether she needs help even though I know I am not needed.
She is on her own when I am at work. My family are nearby and she does not want the help, I have mentioned they can come over but not really interested at all.
This was one of the few occasions that I did not tell her in advance and it was for an hour. I agree with you view of the communication issues.