Tee isn't a negative character, I believe. For she's totally blonde and not only does the actress live up to the role, the character itself is only immature and dumb . . not mean.
And coming to Piya - She is different, she's no Kekta gal to me. Misha slapped her and she slapped her back, evidently different but what Tee did wasn't just an insult, it made her face the reality she's hid perfectly beneath her, she's a happy orphan but she is an orphan anyway, and since she's human unlike her future love interest, such an outburst is fair enough. Obvious. 😳