didnt trust the MC who already went beyond to get him to tolorate her and trusted a 'divine doctor' out of despararion to heal his legs when MC was falsely accused.
when she ran from ML cuz she couldnt stand him (for a good reason)
excluding the obligatory delicious jealousy/punishment arc
I personally think that that MC fell for the ML because he (ML) accepted his body as it is. The MC has always been ashamed of having both sexes (look up Intersex) and yet ML accepted all of him and fell in love 1st. I don't know if the author did it on purpose but they wrote a story with body acceptance for an MC who always considered himself weird.
implied scenes too