Soul Mates?

I’ve been thinking heavily about the question of "Is there something intrinsically different about some relationships on a teleological level?" The Readers Digest version: "Are there soul mates?" People who are just better together than another combination of two people; that function synergistically or something so that they seem to “fit” one another?

Second question would be something like “if there is an intrinsic difference, is that enough to base a marriage on?” I am saying if there IS something special about certain relationships, is that a quality that assists/facilitates/helps marriage (it could be God given). Could this be a way fro God to point out that you should marry and this is the person He’s set before you? Is there such a placement? It seems like it’s the Calvinist view; “Are you predestined to be with someone?” Maybe it’s more just has God made someone that is THE BEST compliment for your uniqueness. But still if such a sympathetic quality existed in a relationship... is that enough of a justification for making it a permanent relationship? Personally, I don't know about the first question, if it exists.

The second I don’t think its justification unless God purposefully intends for you to marry that person, which I would tend to say only He knows (though He may and does reveal it), but that is a line of questioning that will take a great deal more time to figure out.