Account for the relationship as it is now
Use a tone that fits the present relationship, not the closeness, authority, or access that existed in the past. For a message about how to set an emotional support boundary with a friend, use this factual base: name the recurring contact, request, topic, or behavior and the effect it has on you.
Ask without assigning an obligation
Explain what you hope for while making decline, delay, or a different format genuinely acceptable. 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.
Keep the ending honest
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. Avoid future promises, guilt, flattery, or nostalgia that imply the recipient owes you access.