It would have been easy to snap at Jim when he started picking apart his response, and basically talking down to him. Maybe Marco had been looking forward to it. But whatever comments he could have said slipped away at his second point, that it looked like they were in a relationship. Marco's face fell, and his eyes went wide. He looked down to the spot on his arm that Juno had been holding onto, then up at Juno herself.
"It's not like that," he said after a few false starts. To keep from stammering more, he chose not to speak any further.