Anorexia help???

Currently 16 been suffering from it for 8 years i have a loving and supportive boyfriend thats been there for me every step of the way for the past eight almost nine months weve been dating but ive gotten worse lately due to stress with family and if i told him it would break his heart and hed break down into tears used to weigh 108 a week or two ago u weigh 98.6 now idk what to do any advice???