A certain amount of pain, of unfulfilment, is good.
it adds the passion to your dance
it stirs up the melody in your song
it lends a little sorrow to your writing
it increases the length of your breath
it slows down your gait a bit
it heightens your observation
it deepens your speech
it mellows down your temper
it replaces anxiety with patience
it makes you kinder than necessary
it makes you more aware of yourself
So, a certain amount of pain IS good.
P.S. - You see darling, you might not be with me, but you still help me grow.