Well you can use the prespective of mc collected all the things she couldn't have in first life by cheating her way through life and stealing other people success , so technically it is a win for mc
If dame Iona ( from this marriage will succeed) was her superior she would have run laps until she keels over… given all the studying she did in the last life she is hella dumb…she felt offended that jiuen didn’t follow etiquette despite being taught while she follows it conditionally with the prince and nobility…this hypocrite… if you are going to talk big to the god saying you will reject them i would expect you to show more dedication and desperation than this…. This MC is a disgrace to other regress MCs （￣へ￣）
I would like to think that at the end, Carsein fell in love with someone who actually has a brain and appreciates him passionately and MC gets cheated on again. Because more than the shifty ML, I find the fact that MC actually after all that growth and drama chose shit again, so much more offending. All my love was wasted, I fcking hate her.