When removing a band aid ripping it off quickly hurts a little less than pulling it off slowly one hair follicle at a time.
Learning to play the guitar is painful until calluses build up on finger tips. After months of daily practicing, pressing the strings down on the frets hurts a little less.
Singing off key at the first audition is less embarrassing ten years later, after many more times of hitting the wrong notes and playing the wrong keys in many more venues.
An exercise routine starts off with sore muscles and stiffness, but later as muscles gain strength the body moves with fluidity and greater endurance and less pain.
After months of living without you, hours of second guessing myself, and painful chance encounters seeing you today hurt a little less.