She's not sure why the appearance of another metacrisis would be quite this upsetting, unless they had a particularly bad fight. But she can tell he's pushing it aside for her sake, and just for the moment she's inclined to let him. She needs his undivided attention for a little while longer, and she'll be more use to him when she's calmed down. But that doesn't stop her from sending him her appreciation and affection for it.

And yes, that detail is rather distracting. "... A pony?"