Taming a love unknown

This is a story about two soul-mates of opposite persuasion uniting very slowly in time and making it through the hurdles of their on/off love for one another. The love they come to know changes frequently and rapidly and they both have to hold on tight to their love or risk letting it go. It doesn't help that the couple try to save what they have anxiously as they also have a child together and so that is how they come to tame their love over time - that is primarily unknown to them.