Sue graduates from Tactical School a year early, he's barely fifteen. He's toned down the flirting - he treats Aegis completely platonically, in particular - and has cut down on the unhealthy amount of sleeping-with-everything-that-wants. And he's apparently, via his independent study, gotten far enough through the curriculum that they're nudging him along to Command.
They've given Sue a strange old man for a tutor, who appeared in his room and started a physical confrontation, which Sue won; Sue related this story to her with something between amusement and irritation.
And a quicker-than-average flurry of notes has been piling up in the psych data since about that time, according to the timestamps.
Aegis knows before they tell her that they're going to send her to Command early too. She's just barely fifteen herself when she gets another update of the psych files and sees that Sue's had - well, the files aren't terribly clear, some of the communication is happening via in-person conversation and memos that don't get stored in these folders, but Sue's had some kind of breakdown and the only things they can think of to get him out of it, get him back into shape to train and fight, are her friendship and Howlett. They have mixed feelings about both - Howlett's insubordination problem; their bewilderment that Aegis and Sue can be so close when "she's the one person he can't link!" - but they're desperate.
Bird? They don't talk as often over the long distance, just as there was a lull when he went to Tactical ahead of her; their schedules have nothing in common and their contexts less. But he knows her, and he can reach this far if he tries. And she wants to know what's wrong.