Idea of Her Lyrics Meaning

I think there's a deeper meaning behind this song, because instead of say he's in love with her, he says he's in love with the idea with her. And those are two different things. You can fall in love with the idea of her (waking up beside them, kissing them, etc.) Yet discard the parts of her that aren't as friendly. If you love someone, you love all of them. If you love the idea of them, you love a piece of them. And it can be hard to tell the difference sometimes.