Oh, Azalea, I am so sorry about your husband. It sounds like you had a beautiful relationship and your story is absolutely heartbreaking.
My husband is also a runner and I've sometimes imagined this scenario - the phone call, the knock at the door. None of us ever know what the next day or hour will bring.
I'm glad you found your way to Medium. Many people find that writing helps process their pain. It's certainly been my experience. You'll read many stories on this platform from survivors of unimaginable loss. Somehow people find a way to go on.
I'm sending a warm hug and look forward to getting to know you through your stories. Take good care of yourself and Lily.