This is good story, good art, and my first time seeing villainess manga with FMC that looks like a typical busty beautiful queen of a kingdom which perfect fit as a villainess.
She's smart, bit cunning but not cunning enough and her past life has a drawback which makes her easily dance in the enemy's palm when meeting certain people.
In short : She loves 2 men and that's the problem in this story, which dulling her sense of judgements and makes her vulnerable.