There is no U in I but there is an S in us

Why, when you declared us, "over" do I feel the loss. Since for months yes months, I picked self exile from us to live as I. Thinking of you, only as fuel to drive me further away. But my plan worked only long enough to build self doubt, and back I came asking for "us." You couldn't play the game (any longer) and choose for us to "move on." So I fucked up, and now obsess consumed by you, fuel for every thought and continue to be I ..... alone.