Why Did She Suddenly Stop Liking My Instagram Posts?

A female friend of mine whom I'm pretty close with recently stopped liking my Instagram posts. Up until last week she was generally enthusiastic and would like about 70% of the things I posted. But nothing since last Friday. It bothers me that this even bothers me, because in real life, everything seems just fine. We workout together and her enthusiasm towards me is still the same as always. I'm wondering if this is a shit test?
Why Did She Suddenly Stop Liking My Instagram Posts?
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