You should not be nosy about someone else's life.
Lynn overhears her friend arguing with her boyfriend.
Lynn wants to be there for her friend.
Lynn gives her friend privacy but lets her know she is there to talk.
Lynn eavesdrops on the conversation and then gives her friend unsolicited advice.
Lynn's friend appreciates the gesture and feels closer to Lynn.
Lynn's friend accuses her of being nosy and stops speaking to her.