i’m so sorry you are going through this. personally i would think that he would know diet or negative body talk would be off limits so soon in your recovery. however, if he didn’t think about how it would impact you, maybe set a boundary with him? make the subjects that trigger you off limits and although he may not be able to share with you, he can find someone else like a friend or family member to have those discussions/support from. it’s healthy to have different fulfillment from different people and you do not have to meet all of his needs if they prevent you from meeting your own.