Venus represents the wife in the male horoscope. For female horoscope, the spouse is not represented by venus but jupiter. Venus can tell how the wife is. Placement of venus in the birthchart tells the characteristics of the wife.
A debilited or a weak venus represents issues in marriage. Different kinds of issues ranging from disease, infidelity, mistrust, lack of love as venus is the karaka(main actor) for marriage. It is believed, mars causes issues in marriage and during kundli matching position of mars is seen to check arguments and disputes in marriage. However, venus is the primary cause of marriages to not work. Hence this article is written with heavy importance to venus, when candidates are looking for astrology matches.
Venus is the wife for the male horoscope. The wife is seen from the 7th house and venus. Venus with its 7th aspect, indicates the wifes aspect. When looking at venus placement, look for the lord of the house where venus is placed. If the lord is in good dignity, venus will give good results.
However, good venus placement in the lagna(ascendant) chart, and bad placement in the navamsa(D9) chart, will result in marital disharmony.D9 Chart is seen for marriage astrology. If D9 is not checked when both male and female compatibility is checked, the horoscope is not fully matched. Venus occupying the bad houses namely 6,8 or 12 represent issues in marriages in navamsa chart
House occupying venus should be seen as first house. Rotate the horoscope to put venus in first house, so that house occupying Venus becomes the lagna. All the houses now should be read like the lagna chart relative to their positions from venus.
Even a bad venus in the lagna chart with strong venus in navamsa, can give very good spouse for a male. Condition of jupiter needs to be checked when considering a female chart.