I find this a lot with people I have ran with over the years. Just because I am faster than you now doesn't mean I always will be. It's not about a competition its about doing what you love and if it's not about that then maybe running isn't for you.
The sun will come out tomorrow. Even if we fail to rise, the sun will always rise again. It is the cycle of life that teaches positivity. As dark as night may seem, there will always be a bright, overwhelming moment during day to supersede that dark hour.