I want to say that this is the sweetest and most touching one so far. It doesn't matter what the actual relationship between the two is. This level of understanding is what any friend/partner/lover needs.
I really feel like she was pretty justified in getting mad. I mean, Jesus Lyra, you're a unicorn. Your THING is making things float in the air so you don't have to carry them like all the muggle horses. Dropping stuff should NOT be an issue.