When my three kids were little, I had had a particularly rough couple of days (just normal stuff, but felt like more). My husband came home from work, and I unloaded on him how exhausted I was. The wonderful man told me to get in the car, drive to Des Moines (we were living in Council Bluffs at the time), do whatever I wanted there, spend the night in a hotel, and come home the next day. I have to tell you that it was so wonderful to just have one evening to myself, and I was so eager to get back home to my family. I don't think I had any 'rough' days after that for a long, long time. To this day, when I'm having a bad day I say I need to 'run away to Des Moines' (which would be hard because I now live in San Antonio).
The moral of my story is that sometimes you just need a little time to yourself.