When couples argue constantly - Arguments occur not by what is said but by how it is said. The husband was asked why he forgot, he heard that he is unreliable ( he craves acceptance and is now rejected, here comes the wall ) The husband dismisses it with a 'logical' answer. I was busy, not a big deal. The wife hears that she is not important, that work is more important and she is irrational. Proper communication skills will remove this from your relationship almost immediately.