Not to worry you or anything, but a study shows that if you find your spouse irritating and demanding now, you are probably going to find him or her even more grating the longer you are together. While negative views of children and friends tend to decrease over time, spouses just get worse. It's probably the result of prolonged daily contact and accumulated resentments, as well as a comfort level that allows us to express ourselves, and apparently our self expression is really super aggravating to our partner. I guess if you catch yourself saying, "To the moon, Alice!" you aren't alone.
Is there a bright side? Researchers think that perhaps this negative view is just a typical part of a very close relationship that involves spending time together, day in, day out, year after year, until life stretches out in front of you in a never ending prison sentence... Ha ha. See, since the researchers found this was a comon pattern, the good news is that it's probably normal and you aren't alone. Wait, that's the silver lining? Yeesh.