Libidinal life is ruled by Venus ( Sithascha Madano ).
Unconventional marriage ( intercaste etc ) happens when Venus is afflicted by malefic planets.
Venus is the karaka or indicator of Love Life.
If the Seventh lord is powerful, the spouse will be wealthy.
Dhareshe balasampoorne vivaho dhaninan kula
The significator, Venus, should also be powerful for this yoga.
Venus afflicted and a weak seventh lord means problems like separation and clashes.
Angular Venus or trinal Venus can give a good married life