Do you need anything? [Because she's not about to ask if she's alright]
I think I unintentionally stood you up for drinks. It wasn't intentional...
We were supposed to have breakfast, weren't we? And I went and forgot.
I know what you did. Just so we're clear.... you might not know me? But I know what you did.
It's amazing what moving the whole of your life will turn up. It's a good thing our library doesn't charge late fees, because I'd probably be in trouble.
[There's a false brightness to her tone that might be recognizable, if you know her well enough. Someone's chin is definitely up. Feel free to run into her, either in the coming or the going of the library]