Looking at your birth chart, we see that the Sun and 8th lord Mercury are in the 7th house. You are mangalik as you have Mars in the 4th house. Venus the karka for marriage is in the 5th house and in the state of “Vrid Avastha”, hence marriage and marital stability is weak in your chart. Not to forget, there is Kaalsarp dosha in your horoscope, which brings lots of delay and disappointments in life. Doing the remedies of Venus will help.