He didn't suggest a second date. Does he still want to talk?

"We should do this again" said at the door is one of the most common things people say when they like someone a little and want to leave on a warm note. It rarely comes with a plan because the plan is hard to make in the moment, with coats on and a cab coming. So the absence of a date is not the signal you think it is. What matters is whether he followed up in the next day or two with messages that carried the same energy as the date.

Look at the content of his texts, not just the timing. If he referenced something specific you said, asked you a question that invites a real answer, or made a small joke that depends on the evening you shared, that is someone still in the conversation. If his messages became generic, like "haha nice" or "sounds good" with nothing attached, he may be cooling. Pay attention to whether he is initiating at all. A guy who is interested usually sends at least one message a day without being prompted.

A reply here has to do a few things at once. It has to be easy for him to answer, so he does not have to think hard about whether he is obligated to respond. It has to refer to something real from the date or from his recent messages, so it feels like a continuation and not a restart. And it has to leave the next move open for him, without asking him to commit to a date in the text itself.

A question about something he said that he can answer in a sentence does this well. So does sharing a small thing from your day that connects to the date, and letting him respond to it. Avoid anything that makes the reply about the missing plan, like asking whether he is still keen or whether he had a good time. Those questions put him in the position of having to defend his interest, which is uncomfortable and usually produces a short, awkward answer.

If he has gone quiet after a date with no plan, a reasonable window is around two to three days from his last message before you check in, and the check-in should be low stakes. Send it in the late morning or early afternoon, when people are usually more relaxed and less likely to read a text as heavy. Late-night messages tend to read as either lonely or intense, and both make the next reply harder.

If you send one message and get no answer, leave it. Do not follow up with a second message within the same week, and do not send a "hey, did you see my last text" type of nudge. If he does reply, match his length and energy and keep the thread moving for a few exchanges. If he does not reply within about a week of your check-in, or if his replies stay short and flat when you do get them, it is reasonable to stop initiating. You can still answer if he texts later, but you do not need to keep the door open by pinging him.