Eating Disorders Support Group
Eating disorders are marked by an obsessive need to control the intake and/or purging of food. This community is dedicated to those struggling on the road to recovery. Join to discuss your experience with others and find support. Get advice, ask questions, and meet others who are going through similar struggles.

I met my current boyfriend when I was underweight. We dated for 6 months before anything physical happened. That showed me that he wanted me, not just my body. He knew of my eating disorder and encouraged me to heal which I am in full recovery now.
I say go ahead and wear that top. Tell him how you feel, your past, what is happening to you. If he really wants you he will stay. I believe that honesty is best. Always be honest with yourself an others.
And please try not to harm yourself. You deserve so much in this world and hurting yourself is not what you want to do.
I wish you all the best of luck!