Kavya has been pretty straight forward with Vanraj and has shown more remorse and so on the he has ever shown but even now Kavya isnt total vamp cos she does know Vanraj and his kids are important and so on which has been highlighted over the episodes but Kavya is under the influence that Vanraj is so innocent that Anupamaa is playing some game... the things that Kavya accused Anupamaa today on the phone is exactly what Vanraj is doing... He is using his own kids to get one over Anupamaa etc...
Kavya also thinks Vanraj left on his own accord to come to her, took the house, and now asking for money by using the kids.... it's not just about being vamp but the assumption she is under and reacting.
I agree the EMA seriousness of it being underplayed and the fact that Baa and Pakhi think Vanraj is poor bechara is annoying. He is still with his mistress, nothing has changed... he gets to be with her and also come home and Baa acts like this...
See, that's my point! Vanraj is manipulating everyone but gets scot-free, while Kavya gets the blame from his well-wishers as the one to break the house as if he is an innocent soul even though she has being clear from the start after the revelation about what she wants. Vanraj gets to come home and leave even if he does not live there, make crude comments with some eyebrows raised and his mother/children begging him not to go even when Baapuji has clearly stated so, but the moment Kavya comes there and accuses Anu, Baa literally kicks her out!