I don't believe in the commonly held definition of a "Soul Mate" or even "Soul Mates". (which would be a special person that makes your incarnation complete etc....) On the other hand; people that do PLR, often describe spirits that reincarnate together. Or spirits that you continue to contract with either as mother, child , sibling etc....
This isn't the usual "Soul Mate" most lay people are talking about when they use the term.
What do you think Erin?