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 confirm plans for an upcoming date, use this factual base: refer to what actually happened, what you want now, and any personal information relevant to informed consent.
Offer support that can be accepted
Offer one specific form of practical or emotional support and make clear that no immediate reply is needed. Make one clear invitation or boundary and leave room for a different pace or a no. 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 flood someone with messages, demand exclusivity, or use vulnerability to create an obligation. Meet safely, protect personal information, and stop contact when a refusal, block, threat, or deceptive identity is involved. The recipient decides whether they want conversation, ordinary company, practical help, professional support, or quiet.