Ignis would have liked to think that showing up with cake wasn't a likelihood, but then again, he'd seen Gladio's bedroom...

And now that Nina was actually texting him, he might be starting to feel a little bit...nervous about this weekend. Perhaps it wasn't concern for things being quiet at home that had been giving him that uneasy feeling after all...

I've no doubt it derives from his own desire to BE helpful, even if in small, minute ways.