Looking at your horoscope we see that your 7th house which is the prime house of marriage is ruled by Mars. Mars is posited in the 6th house which is not good. Sun which is the cruel planet is posited in the 7th house and there is an aspect of Rahu from the 11th house. Indeed it is a challenging horoscope, when it comes to marital happiness. You should try divorce or a widower as the yog is there in your horoscope.