Chances of Second Marriage in Astrology - Clickastro.com Which House is for Marriage The 7th house in astrology is the house for marriage and long-term relationships. In Vedic astrology, of the 12 Houses, houses 1-6 deal with the 'self', while houses 7-12 deal with the 'other' of a person. The 7th house is the first among the 'other' houses, meaning it deals with the most intimate among ...