Recognize what makes this moment difficult
Acknowledge the event directly without turning it into a lesson, comparison, prediction, or silver lining. For a message about how to ask someone not to contact you through friends, use this factual base: identify the content, account, place, person, channel, access, or behavior that must stop.
Offer support that can be accepted
Offer one specific form of practical or emotional support and make clear that no immediate reply is needed. Give the required action, any lawful deadline, and the one permitted route for necessary matters. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Follow their pace rather than yours
Do not debate the boundary repeatedly or threaten consequences you are not entitled to use. Save evidence, secure accounts, reduce access, and contact platform, workplace, legal, or emergency support when risk continues. The recipient decides whether they want conversation, ordinary company, practical help, professional support, or quiet.