Answer:
Affect-as-information hypothesis theory.
Explanation:
As the example giving suggests, the Affect-as-information hypothesis theory postulates that the decisions we make are influenced by any type of affective feelings like sadness or anger, in this case. Therefore, his advice of sleeping it over and then discussing it in the morning when the feelings aren't as strong is consistent with this theory. This is a model of processing used in cognitive pshychology, a type of behavioral analysis; analyzing the process of thought when an individual is affected by any affectous feelings.