The exact words he said , who was right or wrong , whether he relapsed on the 7th or the 10th , why exactly she does what she does , the depth and weight and timbre of the feelings , whether Love Heals Everything -- these aren 't facts , these are ever-changing blobs of emotional mercury , and when you are working in rhyme , it can be much more powerful and resonant to write about the shards of the coffee cup than about the feeling that caused him to throw it across the room .