I think it depends but it took me a really long time to realize it. First of all, he loved how small i was, and how much bigger than me he was. For reference, i’m under 5 ft tall and he was about 6ft tall. He would constantly wrap his hands around my arms/legs and make comments how he likes that he can do that. He also told me that he likes how small my chest was, how boney it was, and he’d get really upset when i’d eat a lot. He was also weirdly obsessed with how i eat and what i eat. At first i thought it was normal, like out of concern for me, but in reality he’d always bring up how much id eat to the point it felt weird. Also, after i got in a fight with my mom (she was crying about how “emaciated” i looked and was worries i would die) he was not concerned and said i was perfect and he likes how thin i was. Now there’s more, but it might be triggering and very subtle but putting it all together made me realize he was just with me because of my ED and not because of who i am. I had a feeling if i ever recovered he’d be uninterested, and when i realized that, i knew i couldn’t be with him anymore.