"Your actions are part of her concern." This time he turned to look at Simon. "You can't simply hunt down and kill people you think are bad here. Cultists or not." He knew, even though Simon had told Alex, even if Simon didn't realize he did (which he suspected Simon was aware of Alex's telling him), he knew. "Stalking her also won't help." It's added as almost an afterthought as he turns back to watching the people. "It'll only cause more concern on top of her concern for you."