Should you ask what you did wrong if she stops texting?

Read the length of the gap before you read the message. One unanswered day after a busy stretch is normal. Four or five days after a daily exchange is a signal, but it still doesn't tell you why. People go quiet because work got heavy, because they got sick, because they're unsure about you, or because they're making their own decision about whether to keep going. Only one of those involves something you did.

Look at how the conversation ended. If your last message asked a question or suggested a plan, the silence is probably about timing or friction, not about you. If the last few exchanges got short or flat before the drop, that is worth noticing. Also look at whether she was the one initiating before. If she was, her going quiet tells you more than if you were the one doing most of the work. None of this proves anything, but it narrows the reading.

Your follow-up has three jobs. It has to show you're still around without sounding wounded. It has to make replying easy, with something light she can answer in a line. And it has to leave room for the honest answer, whatever it is, including a no. A question about something she mentioned earlier, or a casual link to something you saw that she'd like, usually does this better than a direct question about the silence.

Keep the emotional temperature low. Anything that asks her to explain herself, apologize, or reassure you puts her on the defensive. If she replies with a single word or a shrug, that's still information, and you don't need to chase it. The message only has to open a door. Whether she walks through it is her call.

Send one message, then leave it alone for at least two to three days before you consider anything else. If she replies warmly, pick the conversation back up at her pace and don't bring up the gap again unless she does. If she replies briefly but cordially, match that energy and see whether it grows over the next few exchanges. If she doesn't reply at all, that is an answer, even if it's frustrating.

Don't send a second message asking if she got your first one. A follow-up within a day of the first reads as pressure, and a follow-up after a week of silence reads as a request for an explanation. If two weeks pass with nothing, or if she's replied with something clearly closing the door, stop and move on. Hold the line even if you'd like a reason, because you probably won't get one that changes anything.