Answer:
Sullivan believes that in particular, for the need for intimacy intensifies the most in early adolescence.
Step-by-step explanation:
Harry Stack Sullivan's Interpersonal Theory states that the critical point when the human necessity for intimacy intensifies is during the adolescence, therefore people in that age have the tendency to give extreme importance to friendship and all the relationships they get to built outside their nuclear family because that's intimacy with others obtained by themselves.