Breakups happen. It's a fact baked into every relationship: all relationships come to an end until one doesn't. Sometimes the breakup comes screaming out of the clear blue sky while other times it's like watching an oncoming train and knowing you'll never get out of the way in time. But not every relationship ends with a loud and dramatic climax. Sometimes the end has already come and nobody has noticed. Your relationship is shuffling along like a zombie, putting on the empty performance o...