They say that a person's heart is the same size as their fist but when you said I love you it hit harder than your hand ever did and I may have two black eyes but yours are the color of fresh cut grass and your heart must beat faster than a hummingbird's wings because your fist moved like the needle of a sewing machine on my skin but I was the one stitching myself back up and I am covered in bruises shaped like the hand I used to hold but they will never hurt as much as the last time I felt your pulse
Wrote a similar poem a while ago, decided to come at it from a different angle.