1, you are really thin. Your boyfriend is a twisted guy who has no minimum respect for women's self-awareness. He just wants to build his perfect figure, completely ignoring all kinds of pains that may occur during your own slimming process.
2. You are not fat or thin, but your figure is average, and you belong to the kind of passerby who will not be looked back; Your boyfriend can't extricate himself in the pursuit of personal yearning for the figure of a hot girl, and he wants to use you to realize his ideal;
You are not thin at all, and you may be plump. Your boyfriend is a snake-faced man with backbone. At present, most young women and some men with distorted aesthetics in China define a girl's good figure in this way. This is actually a very sad and crazy thing, but this is the reality. As the inevitability of social development, look at the pursuit of female beauty in mainland countries such as Europe and America. There is no one like China. It is actually a morbid view that it is not advisable to think that a snake has a thin face, a thin waist and thin legs.
Anyway, I don't care about other people's eyes; Don't let your boyfriend affect your pursuit of beauty in your self-concept; What suits you is the best, you must have your own opinions, and you can't follow suit. If your boyfriend loves you, he won't ask you to be as thin as a snake outside.
In short, be yourself.