lol Signs of a need to break up usually have more to do with the people involved then any miracles in the earth or strange things in the stars that dictate the necessity to rend a relationship. If neither party is mature enough to grow past their problems and hold on to the other until it is obvious that there isn't a point to holding on that is understandable. The need to explain isn't really a need at all however. It feels like a human necessity only because somehow your sadistic enough to want to hurt them or masochistic enough to hurt yourself in the resulting arguments that become consequential of such decisions. If you wanted to just walk away you could but you would have to change your patterns of behavior and location sufficient to make it hard for the other person to track you down or you can just go cold until they feel the chill and seek someone warmer to hang around. Point being, there are options. Just a thought.