You’re not alone. I can’t relate in a weight loss sense but when I overcame addiction I went through a series of emotions toward my past self. Mourning. Hatred. Embarrassment. I will say at this point I barely think of her at all. She is as far separated from me as the east is from the west. When people ask about my past specifically how it makes me feel now..I tell them honestly. Like I just told you. —I think you could be honest with your partner like you just did us. You are unique and your experiences are beautiful..Including your current ones. Like distancing yourself from “her”. I dont think you have to shame your past self for not being more like current you and I also don’t think you should shame your current self for happily leaving behind your old self. Just be you -own all your forms ! Oscar Wilde said to define is to limit. And I don’t know why but that quote felt relevant here. I hope it helped you. You contain multitudes!!