After being passed up for a promotion and then getting into a heated argument with his son, a man disappears. he shows up two weeks later in another town with no memory of who he is or how he got there. he appears to be suffering from

Dissociative disorder

Explanation:

Dissociative disorders refer to affections that concern disruptions or breakdowns of consciousness, perception, identity or memory. Therefore, people with dissociative disorders make use of isolation and disconnection as a defense mechanism in a pathological and compulsory manner. Thus, the man had a collapse of identity and memory caused by the argument with his son.

answer; adjusting and adapting to a culture other than one's own;