Mangalik is the position of Mars in the horoscope which helps to assess the sexual potency of the native. Mars if posted in 7th and 8th houses will amplify the potency while in the other houses the potency will be directed towards the significations of those houses. Like in the 2nd and 4th house, a strong mars will initiate fighting or quarrels in the family etc. Since you are a Manglik, you might be the one initiating the quarrels and he does not respond. That is why before marriage, horoscope matching is to be done and those who try to be modernistic suffer in due course. You now know the reason and you can put an end to such quarrels starting from your end. Read my blog Navagraha Astrology online