If it is Ava -- which is a hypothesis not yet clearly supported or disproven -- then this is . . . not how he would expect this to go.

Although he's kept the possibility in mind for a while. Mostly because Trowa considers paranoia a basic life skill.

Still. Tentative evidence against.

He keeps walking, steady, unruffled. With room to move; with all his senses alert.

"This is a pretty one-sided conversation," he points out, mildly. "Not very friendly."

Yes, he's aware of the irony.