Ren's instinctive response is sarcastic as well. A far too snarky internal response of No, the weather was so nice I decided to go for a swim. As tempted as he is, he actually needs information from this young woman, and a more cooperative, diplomatic approach is necessary in some cases like this.

Earth is not the name of any planet he recognizes, but her claim to also be unaware of how she had come to be there is concerning.

"It certainly wasn't a natural body of water." Compromise. Even if his remark has a touch of snark, he makes an effort to remain civil with her. She was proving helpful so far, and he didn't need more enemies on already unsteady and unfamiliar ground.

"Someone had my injuries tended to before I was thrown in." He had had time in the bathroom to check over what should have been injuries but were now just scars.