Interesting question, Vicki!
I think you understood my comments correctly -- I've always assumed the singer was talking from the POV of a friend who has to watch the woman he loves in bad relationships with other men when he knows he'd be perfect for her ... yet he means nothing to her. (He sings at first from a "neutral" standpoint about this woman at first, then admits in the last chorus that he is, in fact, talking about himself as being the heartbroken ignored one.)
I've honestly never considered that he might be referring to himself as the man she is currently dating -- now I need to listen to the song again and see if I can see that view of it. Can you help explain it to me, how you are interpreting it?
Kathy (ooo, discussing videos is as fun as discussing fanfic! <g>)
