It got really bad for my gym buddy in Australia... her husband worked really hard, like super super hard, and so when he wasn't working he liked playing a game on his phone, which also, unfortunately included at the dinner table... even with guests. It was super awks for everyone else, so they needed a mini-intervention too, but it was hard because he kind of felt justified because he did work so much... (which, honestly, shouldn't be a factor).
I'm really impressed that Mary took the criticism with such grace, so much emotional intelligence!