I think the song is more likely to be about his child than his partner, because he compares him/her to a tree which has grown, and "the root of it's me". So basically he knows he has not been a perfect parent, but he still cares and he'll "wait by the window".
"I can't relate to what's on your plate". That's how the world has changed so much, and the young addressee of the song has done so much more things and is so much more a citizen of today's world than the writer. Also, "it's not like before". This suggests there is an element of how the world always changes between generations in the meaning. The title, "Run" adds to this idea.
I think the song is more likely to be about his child than his partner, because he compares him/her to a tree which has grown, and "the root of it's me". So basically he knows he has not been a perfect parent, but he still cares and he'll "wait by the window".
"I can't relate to what's on your plate". That's how the world has changed so much, and the young addressee of the song has done so much more things and is so much more a citizen of today's world than the writer. Also, "it's not like before". This suggests there is an element of how the world always changes between generations in the meaning. The title, "Run" adds to this idea.
A fantastic song.