Is it a good idea to take a vacation from your spouse?

My husband and I have been together for about 35 years, day in day out, 24 hours a day, 7 days a week. I spent about a week with my kids in San Diego. Had a great time, but it was over too soon. I think I needed 2 weeks, and so did he. When silly, little things cause discomfort, you know you are spending way too much time together.