I don't apply a hierarchy of primary and secondary status on my relationships, so my policy is "first come, first served." Whoever asks for my time first, gets scheduled if I am free. I don't cancel time with one person if someone else wants to see me.
The world opens up... when you do.
Oh, oh, can't you see? Love is the drug for me. ~Bryan Ferry
"Love is that condition in which another person's happiness is essential to your own." ~Robert Heinlein