I definitely believe this is about the loss of a relationship due to drunkness. The "Port" refered to during the song is talking about wine. Though the lyrics seem (and title) seem to point to an epiphany during drunkness. It seems like he's already lost this girl. I mean the whole part of tearing/staring up the walls comes before washing it down. Maybe it's simply self-medicating. He drinks merely to forget this girl, but can't because in his while he drinks he realizes he still loves her.
I definitely believe this is about the loss of a relationship due to drunkness. The "Port" refered to during the song is talking about wine. Though the lyrics seem (and title) seem to point to an epiphany during drunkness. It seems like he's already lost this girl. I mean the whole part of tearing/staring up the walls comes before washing it down. Maybe it's simply self-medicating. He drinks merely to forget this girl, but can't because in his while he drinks he realizes he still loves her.