Lyric discussion by MyObsessionWithFire 

Cover art for Oats We Sow lyrics by Gregory and the Hawk

I think the obvious here is that she just can't let go of that someone whom she had loved. "Some day I'll toss all your letters" - She just can't accept that it's over.

Though, there is an underlying meaning here because of all the references to different things. I really enjoy this song.