The second stage is denial. Denial serves to remain in the illusion that nothing has happened and everything will return as before. But obviously this is not the case. Denial then is the second defense mechanism that helps to take the time to be able to better face the loss.
Third stage: substitution. At times the reaction to loss is a quick replacement of the lost one believing everything can return to normal. Unfortunately, avoiding grief is impossible and those that do it are destined to pay an even higher price later.