Why do people cry at happy endings?  The answer lies in the role that psychological safety plays in regulating our emotions.  The happy ending makes it safe enough to experience repressed sadness.

Survivor guilt—the guilt one feels at having survived or thrived situations in which others did not--is a profoundly important factor in creating psychopathology. While easy to see in situations of severe trauma, like concentration camps and battle, it also affects people who simply want to have more of the good things in life than their families. Such guilt leads people to sabotage themselves in order to not surpass their family, whether that be in the realm of love, work, education, or simply happiness.

Psychotherapy helps people in two ways. First, it helps people understand how their minds work which usually helps free them from repeating irrational and destructive patterns. Second, the therapist seeks to help patient have corrective emotional experiences that counteract their self-destructive and defensive beliefs. The combination of insight and new corrective experience, both inside and outside the therapy relationship are what provide the engine of therapeutic change.

Heartfelt apologies are rarely given but, when given, are usually profoundly healing. People resist apologizing because it opens the door to feelings of terrible guilt. Having committed a hurtful offense becomes (falsely) equated in our minds with being a bad and horrible person. The person receiving a sincere apology, on the other hand, feels absolved of guilt and shame, feelings which were excessive to begin with.