The 27th Mile: How to Smooth the Rough Transition Out of Your Running Years

...friendships born on the road are also born of convenience. No matter how close you felt, the bond may have been shaped as much by shared schedules as by shared values. When you’re no longer showing up for runs, it can become a case of out of sight, out of mind. These kinds of situation-based friendships form and fade with job changes, different stages of parenting, moving, and all chapters of life. “Sometimes we make friendships of convenience much bigger than they really are,” says sports psychologist Dawson. “Even though it can be hard to see when you’re grieving, pruning is a part of all aspects of life. It helps us grow.”