I don't really understand Arushi's character at all. Shweta had some reason to hate the family as she was forced into marrying Krish and her parents gave the custodianship rights over their property to Dhara. Here there is absolutely nothing to cause Arushi to hate Dhara or her in-laws. Even the birthday temple visit was revealed just yesterday(?).
Is she actually fooling Raavi or has she just decided not to ruin her own life by marrying Shiva? Maybe she'll use her friendship with Raavi to get back at Dhara instead of marrying an already married man that she doesn't even like. It's all very confusing and logic obviously doesn't figure into it so can't really predict anything.
