Nepeta might not have been inclined to bodily harm, but like many cats, she has her ways of being terribly inconvenient when people are doing things she doesn't entirely approve. So it's just as well that Tony agrees to come on through to the next world (even if Nepeta is still of the opinion that he's overreacting).

She doesn't mention it though. Instead, she nods, and heads on through the portal without the slightest blink of concern. Anyone following her through will find that she is a slightly odd-looking pony even by the standards of the world, not so much for the fact that she's very distinctly green but because she's still got her horns.