Hey Arizes,
You finally have a girl who wakes up from her idealistic world and realizes in the most harsh way that perhaps the way she looked at things was all wrong. The girl who took pride in being careful today stumbled. She is not Nandini, she is lost. She feels how can she be with anyone, in any relationship, with her own family right now when she has no grip over herself.
She refused to go home. Didn't take refuge with her family too. Just like she doesn't want to be Nandini in a relationship. She just has no sense of herself- 5mins of Nandu questioning her essence and the reactions.