it doesn't matter what the author meant?... i can just make up any interpretation that i like?...geezus... ...i know it is not that important, but what the hell is wrong with trying to understand where Barney's head was/is at? if he expects us to buy and listen to his warbling, we can at least ask a few questions every once in a while...
and looking at the song as Barney role playing as a wife's ghost who was shot by her husband doesnt seem to make a hellava lot of sense, and the song would be awfully stupid IMO... why would the man have a tear in his eye while he shot her and "never meant to hurt her" and all the dramatic emotion from the singers viewpoint? the woman still felt for her husband even thou he had to kill her, he didnt really want to hurt her, he just had to shoot her, well, because he wanted to marry another woman, sorry...??? if that was the case, what the hell is Barney's motivation to write the song in the viewpoint of the woman's ghost??? the song does have some strong emotion, one must assume that at least on some level it has some shadow of a meaning to him.
i think that Barney was just bullshitting in the interview(s), as many do who are uncomfortable talking about themselves in public, especially to obnoxious superficial interviewers, so they make shit up (or even Moby, who is comfortable talking about himself, but still bullshits and makes up stories about his life).
maybe the song is about a father figure leaving his mum in 1963??? or even a story made up about a man leaving a woman, based very loosely on his childhood?