Thing is, when she doesn't reply back in a reasonable amount of time and you notice it, it the first sign that YOU are the one who cares more than she does.
A lot of things related to dating have to do with patient. Now, ofcourse there's a sweet spot where you can tell her lack of responsiveness is a sign she's drifting off. But the latter seems to have us all paranoid. You might be talking to multiple women( lets say 3) , and 2 of them will also stop initiating before they drift off. At the end every man has had 5 or perhaps even 10 times more women drifting away than he had actual success with. And this creates, maintains, and thus triggers something in the brain, a negative association.
At some point a woman slowly responding reminds you off that sweet spot moment. Your "traumatized " mind will recognize it as (yet another) rejection. Because all previous rejections started exactly like this.
The solution?; keep calm. She will drift away eventually. When and how is always a question. But be patient as long as it's going on. If you feel like you are entering "stalker/checking up on her constantly " mode, REFRAME immediately!! Shake it off, and realize you're giving her the wheel . Take back the driverseat/control, focus on other stuff and she will definitely come around. Id ahe doesn't it was a lost case anyway.Thats why mirroring her actions is good, although its a sign you're already on the wrong side of the fence because SHE decides the pace instead of you!
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So, having said that I don't know if it is the best thing to constantly call her out. Depending on how long you're dating her and ofcourse an analysis of her regular texting behavior will teach you all you need to know. You'll know when and how to call her out , but when you call someone put there MUST be consequences involved when they repeat their mistakes.
But I still feel like its yet another matter we as men shouldn't take too serious every time. If you work ,hit the gym have some friends and hobbies, you might have a 2/3 hour window to text (including evening). And no, during the lunch break you might need that 30 minute window to actually get some food, have some fun with your colleagues or just ease your mind.
If you are the type who get anxious about texting, then text less.