Isn't this breathtaking?
It makes me cry I love it so much.  
How they move in unison but distinctly, differently.
How she leans into him, and on him.
How he quietly holds her up. 
How he supports her in every lift and turn.
How he helps pull her up off the ground time and again.
And how the music and the dance changes, over time.
Becomes softer, and then sadder, and then stronger.
If seven years of infertility looks like anything, it looks like this.