If your boyfriend takes the initiative to ask you for plastic surgery, it means that he is very dissatisfied with your appearance. And a boy who really likes someone will not ask the other person to change for himself. And your boyfriend actually asked you to have plastic surgery and hurt yourself. And the process of plastic surgery is very painful, which shows that he doesn't care about you at all.
To love someone is to feel sorry for the other person for no reason, but in order to satisfy your own aesthetics and vanity, he even asks you to hurt your body and suffer great physical pain for plastic surgery. This shows that he doesn't love you at all.
So even if you become beautiful after plastic surgery, he won't really like you. He just showed off you as a conversation with his friends, saying that his girlfriend would like to have plastic surgery for herself. So don't go for plastic surgery just because of your boyfriend's words. After all, it is a very painful process.