Autobots Mourn Too by The Assassin’s Pen

 

Set shortly after the end of the first movie, this one shot basically goes over the differences between how humans and autobots mourn. Sam thinks they should mourn more like he does and Optimus Prime tells him that they are mourning, they just don’t do it the same way as humans. It’s really a great story. 

https://www.fanfiction.net/s/7139535/1/Autobots-Mourn-Too