It's not about a girl, he's saying all these things like i'll miss you and I love you but it's over for now and then saying...but you are not my girlfriend (which is who you'd have these kind of feelings for usually) but you are my town. He loves his town so much he has these strong feelings for it. I don't think he is saying "you are not my girl you are much more you are like my home as you mean so much to me", which I think everyone else is seeing it as.
It's not about a girl, he's saying all these things like i'll miss you and I love you but it's over for now and then saying...but you are not my girlfriend (which is who you'd have these kind of feelings for usually) but you are my town. He loves his town so much he has these strong feelings for it. I don't think he is saying "you are not my girl you are much more you are like my home as you mean so much to me", which I think everyone else is seeing it as.