Today I had an argument with my husband and I went too far. Now he can't look at me. That's not a good sign. That means, "I'm not even mad at you anymore. I just can't stand to be around you."
In any marriage or long-term relationship, there are arguments and people say things they don't mean in the heat of the moment. In my humble opinion, based on 12 years into this relationship, civility is the first thing to go between two people spending night and day together.
First it's a feeling of comfort that you know all their little quirks. Then those quirks begin to wear thin. My husband really loves that I can't find my keys. Ever. I love that he folds his receipts with origami-like precision, a process that takes about 5 minutes. He's a little bit anal, I'm a little bit ADD. The bloom is off the rose as they say.
The difficulty in many relationships is remembering to be civil to one another even when you want to kill someone for doing that annoying thing just one more time. Do unto others. Judge not lest ye be judged. Thou shalt not covet thy neighbor's wife. Oh wait, that's something else. (My husband loves when I use humor to avoid serious discussions.)
All I can do now is apologize and wait it out. Hopefully he'll forgive me in a day or so. Tonight we get to have the awkward dinner with my family and pretend to be in love, happily married, close. At a minimum, I know I will be civil. I owe him that at the very least.