I don't understand what kind of a person can rejoice...smile, and celebrate seeing someone in pain, and in agony? I'm not supporting Lavanya but still thats no way to treat a guest. Instead of saying two words of consolation or keeping a hand on her shoulder to comfort her being an elder she was still on her vendetta against La. We blame Arnav for his rotten attitude... guess we now know from where he gets it from!!
If Khushi and Arnav's pasts are connected in a bad way, Nani can turn out to be an impending doom for the couple. She won't let them go against her wishes, and would do anything in her power to get what she wants. Cause for her its either her way, or the highway!!