Vastu affect on married life

Loving married life is what every person is seeking for and adhering to Vastu principles can render positive results.
The Northwest bedroom is best suited for the married couple.
Avoid using dark colours on the bedroom wall.
Always have a perfect square/rectangle shaped bed.
Use a single mattress in the bedroom.
Avoid any kind of clutter in the bedroom
Avoid having mirrors in the bedroom.
Place gas and sink in the kitchen apart at a minimum distance of 4 feet.
If you install any artifact/ pillows, make sure it is in pair.
Place crystals in room near you, rose quartz gives peace, tranquility and understanding in married life.