It is no coincidence that God does not teach us to demand that our spouse treat us in a certain way. No one could ever be the right person for us if all we did was demand and criticize, but not give. It is by giving first that we can inspire our spouse to respond by giving. It is by giving first that we can begin the loving cycle of unselfish caring, and experience profound intimacy, joy, and wonder with our other half. It is by giving first that we can continue to be the right one for our mate and experience him or her as the right one for us.
Some people rely on their gut feeling.
Others go with their rational sense. Struggling to find my own answer, I saw no clarity to this enigma until I realized that knowing who is the one has everything to do with knowing God. It was that simple and that complicated at the same time. A simple notion, yes. But it took me a lot of time and effort to learn that to truly know God means knowing what it takes to get close to Him.