You're overreacting. She obviously was pertaining to ML's feelings for the Saintess. She was giving him a green light to have a side piece because she knows he has feelings for the Saintess. And it's not like they can easily just cancel the engagement because (1) it was the Emperor's order and (2) her family needs money.
--- Also Korean's obsession with handsome men? Lmao, I'd dare question you: would you date someone you find ugly and unattractive? Ofcourse, we have our own preferences. Some find mustaches ugly, some find it attractive. Doesn't mean they have to be bullied for having it. And I think MC didn't mean to say it that way. The author just wanted to emphasize how she likes handsome men but couldn't portray it well.
What's with korean and their obsession on handsome men? She basically saying it's awful to have cursed eyes (red) on average men but it's fine if it's on handsome men?? So average men deserve the bullying?? Deserve the curse cause they are doom the moment they were born average??
And when she said, if a woman suddenly claimed the baby they had is ML's means she view him as someone whose sleep around and she doesn't even intended to ask the woman if the baby is really his or they have other intentions like slandered him or smt..
Geez, MC's way of thought is so problematic