Responses
Do you remember anything else like the hair color?
ig the step bro was blonde? and the girl had long hair, maybe her ex husband had black hair but i'm not sure..
https://www.mangago.zone/read-manga/sister_i_am_the_queen_in_this_life/
This might not be it but
OMG IT IS!!! thanks for your help :))
she (the FL) had a husband but he was horrible, so in her next life she married the "step brother" ig? something like that......