My problem with the vampire theory is that 'Here comes the sun again (to see me through)' sounds to me like the sun is helping him get through. So it seems like that doesn't work.
I'm leaning towards addiction of some kind...alcohol, drugs, etc. It makes more sense cohesively. It sounds to me like his addiction is getting in the way of his relationship with his girl.
My problem with the vampire theory is that 'Here comes the sun again (to see me through)' sounds to me like the sun is helping him get through. So it seems like that doesn't work.
I'm leaning towards addiction of some kind...alcohol, drugs, etc. It makes more sense cohesively. It sounds to me like his addiction is getting in the way of his relationship with his girl.