Twinkle deserves that respect from Sarna people because she has done so much to protect 'em. Hey, does she completely suceed? It depends on the situation. I know Kunj is upset that Twinkle hided such a grievous matter from him but that doesn't mean going ballistic by breaking their relationship. Even he didn't tell Twinkle about her father, but she quickly calmed down.
Usha needs a harsh reality check. I mean, come on, woman! Can't ya see Twinkle is giving you so much respect despite the pathetic behavior of emotional blackmailing. Thanks to her, more strains were added to Twinj's relationship.