If you are a fat girl, you can turn yourself into a real beauty by losing weight and become a goddess pursued by many boys, just like a small partner, so that you can be pursued by your ex-boyfriend, but you may despise your ex-boyfriend at that time, because the boy who pursued you when you were fat is definitely not so good, and you have the right to choose when you lose weight. Of course, you will despise him as an ordinary boy.
And if you are not a fat girl, you are also a beautiful young woman, but your boyfriend still chooses to leave you after dating for several years, then it is not that you want to attract him back by changing his image, because when he is with you, the first is because of your image, and the second is because he thinks you are interesting and wants to know you, but he is separated because you are still beautiful, but he doesn't like your personality, and he feels that he is with you.
Beautiful you didn't keep him, just because he found that you couldn't get to the end in the process of getting along. He felt that he couldn't stand some of your personality problems, differences in outlook on life and habits, and you couldn't get along.
No matter how beautiful you become, he doesn't like your personality. He can't change it if he doesn't like it. Even if he is fascinated by your beauty for a while, he will leave after getting along.