Write from facts rather than momentum
Pause long enough to remove accusations, assumptions, and details that belong to someone else. For a message about how to set texting expectations while dating, use this factual base: refer to what actually happened, what you want now, and any personal information relevant to informed consent.
Offer a proportionate next step
Match the size of the request to the relationship and to what the recipient can reasonably decide now. 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.
Protect privacy on both sides
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. Use the most private legitimate channel available and do not share the exchange to recruit support or pressure.