Lyric discussion by OKRadiohead97 

I don't think this song is about any sort of relationship with a woman. I get the feeling that it is about an individual who is constantly obsessed with time and aging, who always feels the presence of time right behind him, hence the "who do you think that is there?"

He meets this struggle with time with power and determination: "Slow decay, I won't stop fighting yet," of which I think the meaning is painfully clear. "Through the wax and the wane" supports the idea of time being constantly there, nudging him forward.

"I only call them when I know I don't see them" I think is about how time captures people unexpectedly, when you least see it coming.

This is from a literary point of view though, so I could be off, but I definitely do not think this has anything to do with a romantic relationship.

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