If your Guna matching score is high, it still doesn't guarantee a happy marriage. If the Karaka of marriage, i.e. Jupiter, Venus and the seventh Lord, are not well placed in the D-1 or the D-9 charts, marriage can have problems despite high scores. Similarly, running Dasha and transit is crucial in determining whether a person will have a successful or troublesome marriage. https://www.vinaybajrangi.com/horoscope-matching/my-guna-matching-score-is-high-does-it-guarantee-a-happy-marriage