Gerome shot Tidus a quick glance, frowning, and made a mental note to have a word with Inigo about telling people his business... He really disliked how people knew more about him than they knew about him. He didn't know what they knew. It would never have occurred to him to tell people about the ins and outs of Inigo's business, after all...

He was quiet, doing his best to quash the rising feelings of irritation. Pushed it aside and carried on.

"I can see how that would be a concern." Keep the tone even, calm, focus on the parts that wasn't a point of annoyance. Or, in this case, focus on the lesser annoyance.