Honeslty, she is really To Nice To him. Put aside he treated like a trash. When there are a chapter with indian guests, if i remember if they eat the meat of the cow it could provoke a war. When the male lead heard that his mistress did that, he did nothing: like a war was going To start because his dump mistress, but he still does nothing...Lol. Plus if he loves sooo much his mistress he could make Her the empress since he did it in the first life. Seriously, no hate To the author but they think just because many readers are into isekai story and all, they can give us a story without logic. I feel like the author just made the beginning of the plot without logic only because he/she did not have enough imagination
She is too nice for him :/ . He treats her like trash+y and she still has the capacity to feel compasion for him