From another blog - basically, what went down was, Deb had prepared a lovely dinner - and it wasn't the first time

she had gone to such loving, careful effort.  And like at the start of previous lovely dinners, pee-freaking-wee had to make an issue about Deb's "mistake."  Oh, horror of horrors, she had left ... oh what. ever. sit in the frig a wee bit too long.  Now it's cold...whaa!   So of course, pee-wee just has to ruin another nice dinner for Deb by making rude faces at her.  Never mind, the woman (probably) works full-time, then comes home to another entire shift. 

Frankly, pee-wee oughta be grateful he isn't being served fast-food, three or four times weekly.  But of course, pee-wee is a not-exactly-covert reviler.  Had he at least been a semi-honest scoundrel, Deb would have likely split years ago.   And then ole peewee plague would have to find another host - and beef and wail about having to continue supporting his kids. 

Deb, like alot of wives, is waaayy overburdened - with things that her husband should be taking care of (like, why is she ALSO cutting the grass???).  Uh, so of course she's going to forget the fancy mustard while at the store - with a dozen other tasks nipping at her heels.  Never mind, nobody bothered to tell her it was used up - better yet, take the bother to add it to the list that is affixed right on the door.  And ya know what, that Deb - who is reminded of her incompetence - even has a nice pen attached to the magnet.