Lyric discussion by bigspooon 

I think it's about a girl who grew up and spent her childhood with a guy. Eventually they got together and things were going great until he moved away (from the sound of it, he's one of those guys that needs to move to new places to 'discover himself').

The song picks up after he's left home and come back a few times. The narrator mentions how uneventful("I'll tell you first, it was way too quiet") and depressing ("It rained a hundred nineteen days of the year") her life becomes when he's gone and how she wishes she could make him stay permanently. However, she acknowledges that he will eventually travel to different parts of the world and knows she can't do anything about it.

All she knows is that whenever he's around they have an amazing time together and have all sorts of mischievous fun ("A couple of bars where we're not allowed"). It's so amazing that she wishes she could slow down time just to be together for longer.

However, she has reached the point in her life where she begins to wonder why she wants to stop time because she knows that he will inevitably leave again. But despite this fact, she is still committed to stop things from changing even though she acknowledges that while certain things seem stuck in time (trees) the fact is that time flows past us ("you can see it when you drive").

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