You shouldn't tell someone's secrets to your friends.
Prentiss has just confided in Julian that he is struggling with credit card debt and asks Julian not to tell anyone else.
Julian wants to help Prentiss get out of debt.
Julian looks up some resources on debt management and sends them to Prentiss.
Julian starts a public fundraiser to raise money to help Prentiss get out of debt.
Prentiss appreciates Julian's support and continues to come to him for advice and to talk.
Prentiss feels humiliated that his financial struggles have been publicized and stops being friends with Julian.