You've probably heard of the five stages of grief. More formally known as the Kubler-Ross model, the concept was first introduced almost 50 years ago, and posits that people will respond to difficult life events by moving through feelings of denial, anger, bargaining, depression, and finally acceptance. The five stages have basically become the standard way to think about how people will react when something terrible happens.
Maple Leaf fans are very familiar with the five stages of grief.
You kind of have to be. Being a Leafs fan over the last few decades has basically meant cycling through the five stages almost constantly.