With Gladio's hands on him and Prompto's voice worried beside him, it shouldn't have been so hard for Ignis to pull himself completely back, and yet, there is a small part of his mind that says drifting is better. After all, he was trying not to bother them and look at how much he's doing so now. They've completely stopped talking about the real issue and are focusing on him.

"It's 'tit for tat.'"

No one can be blamed if they think Ignis is still out of it when he finally responds softly, leaning into the gentle kisses Gladio is peppering across the side of his face, but the correction is very definitely an Ignis thing to do, "'Kit kat' is a kind of candy if I'm not mistaken."

Correction complete, he leans forward to press a kiss gently against Gladio's lips before reaching out to find Prompto's shoulder and give it a squeeze, "I'm sorry. It seems this is taking more out of me than I thought it was."

Not the whole truth, but at least part of it. He's exhausted, both mentally and physically.