Which tells us that Amanda has a type--
Sort of.
The insightful aspect of Lee/Scarecrow is that he is a fundamentally domestic guy who ended up as a spy. The strong implication is that his early home life and accompanying pressure to live up to his uncle's standards pushed him to challenge himself. He is rather like Booth! (In fact, the entire show is eerily prescient of Bones, as I mention elsewhere.)
So this time, Amanda fell for the more reliable version of the same type.The adventurous hero who is still fairly dependable and is not, like the princes in Into the Woods, going to hare off to "find himself" in some jungle somewhere is a strong archetype in mystery series. When he is well-written, he is also fairly believable. Booth is quite believable as a tough guy who served his country and stepped outside "ordinary" life. With age, he is very happy to enjoy domestic bliss with his darling wife and kids.
Chase from House was this type of hero/antihero, an intelligent guy forced to act like Mr. Genius when he is truly slated to be a more than decent general practitioner.
Reese from Person of Interest, a far more dangerous and far less domestic figure, is nevertheless instinctively domestic at heart. One reason he and Finch get so irritated with poorly behaved spouses is that they value the domestic life even as they cut themselves off from it.
Like Booth and Scarecrow, Reese is good at his job. Like them, he has an outsized sense of responsibility. Yet he is believably invested in everyday life and the domestic bliss he can never find but still values.
Great archetype--well-written characters!