Niall was visible relieved that Liam was able to fill in the blanks without him needing to say it out loud. His worry wasn't entirely relieved, though the Liam-shaped part of the equation was now squared away. Niall was still a producer on the show and he didn't want anything he did to come across as some sort of abuse of power.
"Okay, good. I just wanted to check. I know you've been getting close to Tina, but..." He waved a hand vaguely. "If doesn't does happen, I don't want it to be an issue."