How to follow up when she says she'll let you know
She said she'd let you know. Here's how to push the conversation forward without seeming needy or desperate.
When someone says 'I'll let you know,' it usually means they're not ready to commit right now. Maybe they're actually busy. Maybe they're keeping their options open. Either way, the ball is technically in their court, which means you're waiting. But waiting forever kills the vibe.
A good follow-up message does two things at once. It gives her a gentle nudge to actually decide, and it shows you're not sitting around checking your phone every five minutes. You're not angry or withdrawn. You're just moving on with your week unless she gives you a reason to stick around.
The timing and tone matter more than the words. Too fast and you look needy. Too slow and she forgets you exist. There's a narrow window where a follow-up works.
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What 'I'll let you know' actually signals
She didn't say no. She also didn't say yes. This is the soft stall. It could mean she's torn and needs time to think, she's waiting to see if something better comes along, or she wants to avoid hurting your feelings by rejecting you outright.
The dangerous move is treating this like she's still a yes. She's not. She's a maybe with an expiration date. If you wait too long, the maybe becomes a no by default. If you push too hard, you force her to actually reject you. The follow-up message is your chance to make her actually decide, not just delay.
The two-part move that actually works
First, you give her a specific timeframe and a concrete plan. Don't say 'let me know whenever.' Say 'Tuesday at 7?' or 'this Saturday?' She can say yes or no to a real thing, not a vague idea. Second, you do this without urgency in your tone. No question marks stacked at the end. No 'please' or 'would you mind.' Just a casual statement that assumes she'll decide quickly, the way someone who isn't desperate would write it.
This combo does the work. It forces a decision while showing you're not sitting by the phone. You're offering a time slot like you have other options too.
The four day rule and the cutoff point
Wait at least three to four days after her 'I'll let you know' message before you follow up. Any sooner and you look like you've been counting hours. Longer and you've already lost momentum. Send the follow-up on a weekday during normal hours, when she's likely to see it and when yes becomes logistically possible.
If she doesn't respond to the follow-up within two days, stop. You've asked twice now. A third message is just you chasing. Let her reach out if she wants to. If she goes silent after the follow-up, assume it's a soft no and move forward. Don't spiral or send another message two weeks later hoping she's changed her mind.
Why these replies fail
“hey babe just thinking about you and wondering if you maybe potentially had any time to think about that thing we talked about?”
Too many hedges and too much softness. It sounds like you're anxious and she owes you a reply.
“ok i guess you're too busy lol”
Passive-aggressive guilt trip that makes her defensive instead of making her decide.
“no pressure but it would be really cool if we could hang out sometime soon because i think you're amazing and we have great chemistry”
Saying 'no pressure' while applying pressure. The long explanation is trying to convince her instead of letting her choose.
Common mistakes
- Sending a follow-up the next day, which signals you've been thinking about her nonstop
- Asking 'did you decide yet?' which puts her on the defensive and feels passive-aggressive
- Going silent for two weeks then acting surprised when she's moved on
- Sending a long message explaining why you'd be good together, which kills any tension
- Using sad or sarcastic language like 'I guess you're busy' to guilt her into replying
Questions people ask
- How long should I actually wait before following up?
- Three to four days minimum. Less than that looks obsessive. If she needs time, give her actual time. A week is pushing it unless you both agreed on a specific deadline.
- Should I apologize for following up or acknowledge the wait?
- No. Don't say 'sorry to bother you again' or 'just checking in.' Act like this is the first time you're asking. Keep it light and move on.
- What if she says she's still not sure after the follow-up?
- You can give her one more specific deadline. 'Let me know by Friday?' After that, you're done. Anything more is begging.
- Is it better to follow up over text or call her?
- Text. A call feels more high-pressure and gives her nowhere to hide. Text lets her respond on her own time without being put on the spot.
- Should I offer different times or push the original plan?
- Stick with the original time first. If she shoots that down, you can offer one alternative. More than that looks like you're bending over backward.
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