I like this idea but believe we don't just have one soul mate. Sounds wierd I know but I believe there's several different soul mates and not all of them are meant to be intimate ones.
Crystals for Migraines — Lapis Lazuli, Jet, Amethyst, or Sugilite (not shown) can help reduce or eliminate migraines. Place your preferred crystal on your forehead as needed. — Related Chakras: Third Eye and Crown.