Looking at your horoscope we see that 7th lord Mercury is in the 12th house , it forms the Kalathra Dosha. 7th lord in 12th house is not good as it indicates health issues of the spouse. Financial problems are also indicated. Therefore matching of the horoscope will be important for marital happiness.
As per the horoscope of the native Ketu in the 5th house is not good, and it is conjoined with Jupiter , although exalted, still forming the Guru Chandal dosha. Aspect of 12th lord Saturn on Ketu and Jupiter is strong. Exalted Jupiter in 5th house , which is also lagnesh will give love relationship. However Ketu and aspect of 12th lord Saturn will bring obstacles. 12th lord is separative planet and ketu will depress the good effects of 5th house. Chances are weak. Do Shani Puja and Rahu Puja and strengthen the 5th house.