Clarify the agreement that existed
Identify the promise, policy, schedule, ownership, or shared understanding that applies before assigning blame. For a message about how to set a boundary around requests for money, use this factual base: name the recurring contact, request, topic, or behavior and the effect it has on you.
Resolve the next dependency
State what is complete, what remains disputed, and which action would move the situation forward. State the limit, any acceptable alternative, and what you will do if the pattern continues. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Document without threatening
Do not diagnose your friend, list every past grievance, or threaten public embarrassment. For stalking, threats, coercion, or self-harm concerns, preserve evidence and use appropriate crisis or safety support. Keep a factual record and describe only remedies you are entitled and prepared to use.