Why did this girl stop messaging me when before she acted super interested (serious answers please)?

Anonymous

This girl I talk to in person acts very interested in me (super giddy around me, laughs at everything, teases me) while in person however over text this past week or so she’s been unresponsive but her replies were always thought out, starting new conversations, using emojis, reading, etc…

However, I've been left on delivered for 4 days now going on five, I saw her yesterday at work and she acted as she always does though I acted a little cold with her because I'm confused

I was never very flirty with her and never reached out first so maybe that could play a factor? It actually started literally the day she reached out to tease me about something at work and that was the last time we really talked over text

Is she playing hard to get or something or am I overthinking?

I've already posted this but got a lot of answers like "texting isn't real communication" which, I get, but I talk to her anytime I see her in person and I'm just asking about this one aspect of our interactions so please give answers that pertain to my question

Why did this girl stop messaging me when before she acted super interested (serious answers please)?
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