I don't think Kavya actually liked Veer because remember she had compelled Armaan in the beginning. I don't know how Armaan wanted to be a werewolf, maybe that could have been her compulsion ( but then he had enjoyed being a werewolf which leaves me confused ) and when Veer had said he can't be a werewolf, she never once forced him. So I think she was only pretending with Veer and manipulating Armaan like in TVD. What I don't get exactly is when did Armaan become werewolf and whether he remembered everything Kavya did to him? Also I vaguely remember seeing a BTS few days before where flashback Armaan was stabbing Kavya or something, I'm not sure though. But if he had trapped her, that should have been long back but Sudha has seen her or Sudha and Armaan must be in it together like she had sort of gave a look to Armaan in between.