I’m M23, shes F23. Today she accidentally let slip that she has been looking at her exes social media’s at least once a month since we started dating. This is only a new relationship between us both (3 months) but I am wondering if I am crazy for thinking this is quite bad? She said it’s just because I’m autistic that I think it’s bad and that everyone else would be fine with it.

Is it really because I’m autistic? I am not sure if this counts as a moral judgement question

TLDR: Is my girlfriend looking at her exes social media’s and keeping up to date bothering me because I’m autistic? Or is it normal?