Many believe that entrepreneurship and marriage are incompatible. The argument is that starting a new venture just takes too much of your time, mentally and physically. By the time a day or week of work is finished, there's no time left to nurture a relationship. And just like you can't successfully run a venture off the side of your desk, you can't do this with a marriage. All that said, let me explain 5 reasons why every entrepreneur should get married.