[ though that answer is not unexpected, he stays silent of a couple of seconds perhaps in annoyance or disbelief ]
.. Why do you enjoy torturing your sister so much!? [ He's not one to talk about treating a sibling like dirt but he feels sorry for Saya— having a sister like Diva must be hell. Even when he treated Conrad like scum he never went as far as torturing him the way Diva does with Saya. ]