There's a difference between having a real relationship and just being together because that's all you're used to. There's a difference between meaning your "I love yous" and just saying them every night because "that's what you do." There's a difference between being together and wanting to be together. It's a relationship, not a routine.
Tell me about it...never been more true than right now! You never know how much you need a support system until you lose your sissy; your best friend in the world; the one whose been your support for 24 years. :(