@SECRET_ASIAN_MAN Way back in the 1970s, a girl in our college dorm was diagnosed with anorexia, also exacerbated by a boyfriend who made her dread gaining an ounce. Her weight loss was so drastic that her parents brought her home for treatment. Back then, very little was understood about eating disorders. Hopefully you have access to much better medical and psychological resources now. Good luck.
It is hoped she sees that he is not good for her.
I wish the best for you and your family.
🙏 @GeezerWench