Manga Beware Of The Villainess!

I became the villain of the novel! Do I hate him? No! I find it pretty nice. Duke's daughter = unemployed rich girl. How can I miss such a chance?! It's the best chance to just enjoy life. I have to throw out the main story and just live as I want! Shortly after I woke up as a villain, I witnessed the betrayal of my fiancee, the protagonist of the novel, the crowned prince. I saw him embrace another lady, and he smiled so brightly. I was brought to tears... I'm kidding, I didn't cry! My tears are too expensive to waste on this trash. Instead of tears, I screamed, "Your Highness, are you garbage?" The main character with a personality of refreshing soda! The stampede girl of the protagonist, who will completely throw out the main story! Why? Because it's a waste for a girl to be surrounded by cheap cars. (cars = men)