I do not have control over assumptions others make about me, choices they make based on those assumptions and how they feel about me. I cannot always control the emotions I experience in response to the actions of someone else. Sadness, frustration, loss, defeat are all valid emotions. That being said I CAN control how I react to my own emotions. I will feel them, strongly, but I will use this energy to motivate other areas of my life. Use my negative energy toward my workouts. The sadness will be a reminder to better myself. Loss just means there was a positive effect on my life that is now gone and I need to take something from the positive impact instead of focussing on the deficit of it. I will control what I can, and let go of what I cannot.