What to say when she says she's an introvert who hates small talk

Her message is mostly about pace and depth. People who say this usually mean they get drained by openers that go nowhere and they would rather talk about one real thing than skim five surface ones. It is not usually a rejection of you or of talking at all. It is information about what a good conversation looks like for her.

The apology at the end of a message like this is worth noticing. It tells you she expects this to land awkwardly, and she is checking whether you will make her feel she was too much. Your reply should answer the preference and let the apology go past without a fuss. A calm, normal tone does more here than any reassurance.

The move that works is to take her preference seriously by offering something with a bit of weight, while keeping the question small enough to answer in a sentence or two. Pick something that has an actual opinion or experience in it, not a fact she can answer with yes or no. The point is that she can pick up the thread and go wherever she wants.

Also, keep your own message a similar length to hers. If she wrote three lines, do not send a wall of text. A short, direct reply shows you are listening to the pace she set, and it leaves room for her to add more if she is in the mood.

Because she has told you how she operates, a slow reply is not automatically a bad sign. Introverts often reply in bursts when they have energy, and a day or two of gap is normal. Give it a reasonable window, and do not treat a quiet afternoon as a verdict.

If she does not reply after a couple of days, send one short follow up that stands on its own, with no guilt and no question about whether she is still interested. If that also goes unanswered, let it rest. Stop after that point, because more messages will read as pressure, and pressure is the one thing she has already told you she does not want.