You think you're defending her, but you know? You really aren't, any more than the "she's opposing her culture and she's bad so she did it for a bad reason" people are. You're robbing her of agency and reducing her to an automaton, a puppet that jumps (and puts poison in someone's food) when its strings are pulled.

Her attempt to murder Ivan took place for a number of reasons, but first and foremost, because she chose to attempt to murder Ivan.