I support you both, but there are worse things than an eating disorder. Like womanizing or drug and alcohol addiction. You don't have to do drugs, drink , or even have sex to live but you do have to eat. Learning to control what you eat is a challenge but you can do it! 
My hub is a horder I "enjoy" that this is his problem rather than him having a drug, alcohol or womanizing problem. He is learning to throw things away. Change can happen, good luck! 
