You should break off your engagement with your girlfriend.

"Being with her is not good for you. After she said all that to you, don't you feel anything? You should break off your engagement with her. I've heard those words so many times—advice, you might call it—that my ears have grown tired of it. And then, I overheard her talking to her classmates, saying: "That guy? His face and personality are both plain and dull. He can't even do sports and he's slow. The only good thing about him is that his grades are a little bit decent"—?" ※Warning: The heroine's language is crude and contains expressions that could be perceived as discriminatory. Please be careful. ※Thank you for reports of typos and your feedback! ※The title and the engagement cancellation in the story have been changed from 婚約破棄 to 婚約解消. Thank you for the ranking!