For the first time the BAU finds itself superfluous when the kidnapping victim frees not only herself and an actual kid which had also been 'napped', but also phones the Police into the unsub's house and thereby identifies him neatly.
Rose likes working in her cafe, helping people with the small things and being social without prolonged contact. Then comes Dr. Spencer Reid, a man who is so absorbed in his books, he forgets to eat and drink - a man who reminds her of the friends she left behind when she came into this new world. He's someone she can help and he can help her, even if he doesn't know it.