I think that this might be some kind of addiction (drugs?) and he can't find a way out, and "each door the same direction". He can't act the same with the one he loves now because of the addiction "When you throw your arms around me/A world of walls surrounds me" This addiction has taken hold of every aspect of his life and it won't let his life return to normal, so all he has now is memories.
I think that this might be some kind of addiction (drugs?) and he can't find a way out, and "each door the same direction". He can't act the same with the one he loves now because of the addiction "When you throw your arms around me/A world of walls surrounds me" This addiction has taken hold of every aspect of his life and it won't let his life return to normal, so all he has now is memories.