Looking at your horoscope we see that your lagan is Virgo and its lord Mercury is debilitated in the 7th house, which is not good. Mercury is not only debilitated but combust due to its closeness with Sun.
Ketu in the 11th house aspects the 7th house. Your horoscope is not strong for marrital happiness, therefore proper Kundli Milan should be done before marriage to enjoy marital happiness.
Blessings,
Navneet Khanna
Astrologer