She hasn't Snapchatted in a week? Read the signal first

A single gap tells you almost nothing. What tells you something is the pattern before the gap and what's happening elsewhere in her life during it. Look at how often she used to send snaps and how long she usually took to reply. If she was consistent and then stopped, that's a change. If she always went quiet for days and came back, you're looking at her baseline, not a warning.

Check the other places she shows up. Her stories, her replies in group chats, her activity on other platforms. Someone who is busy but still present is sending a different signal than someone who has pulled out of your conversation entirely. Be honest with yourself about how much you're reading into a feed you can see but she doesn't know you're watching. Use what you see to set your expectations, not to build a theory.

The reply needs to do three things. It has to be light enough that answering costs her almost nothing, specific enough that it's clearly from you and about something real, and open-ended in a way that invites her to share something without owing an explanation. A message anchored to something she mentioned earlier, or to something you saw that's clearly yours to comment on, works better than a generic check-in.

It should also carry no pressure. If your message implies she should respond, or asks her to confirm she's still interested, you've turned a casual exchange into a test. Keep the stakes low. The goal of this message is only to reopen the channel, so judge it on whether it makes replying feel natural, not on whether it gets you a big answer.

Send your reply at a normal time of day, when a reasonable person would be texting. A message sent late at night or in the early morning can look like you're fixated, and it can pull the conversation into a mood it doesn't need. Mid-afternoon or early evening, when she's likely awake and not winding down, is a safer window.

If you get no reply, give it at least two to three days before you follow up, and make the follow-up even lighter than the first. One gentle follow-up is reasonable. If she still doesn't respond after that, stop initiating on Snapchat for a while and let her come back to you. If weeks pass with nothing at all, or she answers only with one-word replies that show no interest in continuing, treat that as a clear answer and move on without another message.