What to text a girl who didn't respond?

Look at what the last exchange actually looked like. If she was replying quickly and asking questions back, the silence is out of character and probably situational, like a busy stretch or a message that got buried. If the last few replies were short, late, or one-word, the silence is more likely a slow fade and you are watching a conversation that was already cooling.

Also check whether you ended on a question she could easily answer. A message that closes with an open loop, like a plan or a story she wanted to hear the end of, gives her something to come back to. A message that just stopped gives her nothing, and silence is the easiest response to nothing.

The gap matters too. A few hours on a weeknight means little. Two or three days after a lively back-and-forth is a different signal, and it is fair to act on it.

A good follow-up is anchored to something she said earlier, so she can see you were paying attention and she can pick the thread back up without rebuilding it. It should be light, with one thing for her to respond to, usually a small question or a clear invitation she can accept or decline in a few words. The tone should sound like an ordinary text from someone who had a nice conversation and is curious about the next bit.

What it should leave out is any reference to the silence itself, any sign of hurt or effort, and any sentence that asks her to justify herself. Keep it brief enough that she could reply from a queue at a shop. The less it asks her to do, the more likely she is to actually do it.

If you are proposing a plan, make it concrete and near-term rather than vague. 'Still up for that coffee this week?' gives her a yes or no. 'We should hang out sometime' gives her nothing to answer.

Give it a day or two after your first message, depending on how active the chat was. Sending the follow-up in the evening rather than first thing in the morning tends to look less like pressure. If she replies warmly, match her energy and move the conversation forward. If she replies with a short acknowledgement, keep it moving and see whether she picks up a thread.

If you get no answer after one considered follow-up, send nothing else for at least a week. A second follow-up that is just a bit more direct is fine only if the first one was clearly ignored after a warm exchange. Three or more unanswered messages turns a fair question into a signal that you have not read the room, and that is the point where most people stop being interesting to the other person.

When the silence holds after that, the conversation is over. You can leave it there without closing it dramatically, and you should not send a parting message that asks for a reply.