While there might not be a way to break up with someone that makes them feel all warm and fuzzy, there are certainly ways to mitigate the damages. These exes did none of those things, in fact, adding insult to injury by making their dumping as cold and cruel as possible.
A Reddit thread asked, "What is the coldest way you found out your relationship was over?" It's almost impressive how callous and passive-aggressive people can be.
I was heading home from college for three days, and I had asked my girlfriend to take care of my fish, I had an aquarium in my dorm room. I knew that we were having some miscommunication, so I wrote a letter to share what I was feeling. It was a very nice letter, and I was explaining that she meant a lot to me and that I was willing to do what it takes to keep the relationship working. And thank you for taking care of the fish.
When I got back to college, when she saw me she said, "We have to talk".