In your horoscope we see that 7th lord Jupiter is in the 10th house and conjoined with Rahu forming the inauspicious Guru Chandal dosha. Venus the karka for marriage is in the 8th house which is not good. The Mercury mahadasha and Jupiter antardasha is also not favourable on this front. You should try to solve all disputes amicably and be ready for a compromise.
Keep fast on Thursdays for benefits. You can also wear Yellow Sapphire for strengthening your 7th house.