The whole song is probably about a girl he loves that he was once in a relationship with. He doesnt say anything about a breakup but the title of the song suggests that maybe she had to leave permanently for whatever reason and it's eating away at both of them- "Now everyday you feel a bit less." I think the part about the picture has to do with reminding her of that one point in time that a picture captures and how wonderful things used to be when they were together.
The whole song is probably about a girl he loves that he was once in a relationship with. He doesnt say anything about a breakup but the title of the song suggests that maybe she had to leave permanently for whatever reason and it's eating away at both of them- "Now everyday you feel a bit less." I think the part about the picture has to do with reminding her of that one point in time that a picture captures and how wonderful things used to be when they were together.