It did not cross his mind before that Lyn would have such thoughts; then again, Allen was always under the impression that she did not care about him. No, it's not like she didn't care about him; it's most likely the opposite. It's because she cares so much that if she intervened, too much things would go wrong. "Your sister did this."
Allen was not the type to point fingers at people. But one of the things they discussed when they first got engaged was this, to be honest with each other. Lyn didn't look surprised at all, and the girl even sighed.
"I figured, eldest sister went to visit you. Did she complain about it, about you helping Kazuya and me?"
"You heard from him what happened correct?"
"I did," her gaze dimmed. "Eldest sister is using despicable means to get to Kazuya."