Venus is the karaka of marriage and the barometer of how you love. Strong and well-placed, it gives warmth, harmony and timely marriage; combust, debilitated or Rahu-afflicted, it writes the repeating relationship patterns people mistake for bad luck.
In male charts Venus doubles as the spouse-significator; Jupiter plays that role in female charts by tradition — both are checked with the 7th house and Navamsa in any serious marriage reading. Full marriage guidance.