leaves falling (in love) (гет)

After Yelena turns her recurring alarm off and accepts the usual towel from him to dry off—but before she can grab her bag and leave—he blurts out, “Where are you going?”
His heart is pounding in his chest as she halts in her movements and stares up at him with surprise. She hesitates, then says, “Catching up with a friend.”
No mouth twitch. But— The red flush on her cheeks. The one that built up from the last hour she spent flawlessly pivoting and stabbing a dagger at an imaginary force. It deepens.
She starts blushing.
He’s losing his mind.
 
Or
Yelena has a secret.
Bob gets to the bottom of it (and maybe learns a few extra things as well).