I think this song is a loss of innocence/loss of love type of thing. He feels old and tired and he's lost his passion. Being with his significant other doesn't excite him anymore. The 'pack my case' might mean that he's leaving (going to work, on tour).
I think this song is a loss of innocence/loss of love type of thing. He feels old and tired and he's lost his passion. Being with his significant other doesn't excite him anymore. The 'pack my case' might mean that he's leaving (going to work, on tour).