Student or Learner
Nice to see where I got my snarkiness. Of course, that seemed to be all I’d gotten from him. I’d seen pictures of him before, but this was the first time I’d seen him in person, and I was having a hard time not staring. He was so different from what I expected. He was definitely handsome, but . . . I don’t know. In a fussy way. He looked like the kind of guy who had a lot of shoe trees.
Does she mean that he seems a guy who uses shoe trees in his shoes? Isnt there a metaphor?
Even though the use shoe trees is a logical way of keeping expensive shoes in good shape (for example, they keep the shoe in the same position as when it's on the foot while it's not being worn, thereby keeping the sole from "bowing" or the leather from creasing), I still picture only old men like my Dad using them!
I think what the writer in the OP is saying is that a man who has a lot of shoe trees at home (one pair for each pair of shoes) is also the type of man who, for example, organizes his canned goods in alphabetical order on the shelves of his pantry.
In other words, he's one fussy and scrupulous fellow
And, maybe, even a little bit obsessed about some routines...