Esha said equally terrible if not worse things about Amrita.
The difference is, Amrita was weaker than Esha physically and Esha's ego & bad attitude couldn't handle getting it back.
Would Esha have slapped Khali no matter what he said? Of course not.
On the other hand, she knew she could easily beat up petite little Amrita. So, she had her way with Amrita and then bullied Amrita into silence.
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