Responses
I did not read the novel, however, I assume it is because she showed him affection/acceptance. I remember in an earlier chapter Jeremy was upset because "they look at us like we are monsters" (or something like that). Roxanna was prob the only one who offered him any comfort (she prob was especially nice to him since he gets obsessed with the female lead in the original story who ends up getting her killed).
I imagine abused children/children who come from abused households cling to anyone with a little bit of kindness/acceptance.

hey so if anyone has read the novel could you please spoil me on why Jeremy got so attached to Roxanna in the first place,, like it vv clear she’s the only person he only cares about but never said why