Final answer:
The patient is experiencing the developmental crisis of Intimacy vs. Isolation.
Step-by-step explanation:
The developmental crisis that the patient is experiencing is 2) Intimacy vs. Isolation. In Erik Erikson's stages of life, young adults are concerned with developing intimate relationships with others after having developed a sense of self in adolescence. Adults who do not develop a positive self-concept in adolescence may experience feelings of loneliness and emotional isolation.