My heart goes out to you! I've been at that place so often. I eventually do get to a place where I start caring and recovery does look appealing. I really believe a time will come for you.
Has your therapist addressed this denial/apathy specifically with you?
Like you, the apathy is there when my ed is not affecting my physical health. It's when it's "easy" and I'm getting the results I want that recovery doesn't seem necessary. I've spent most of the last 16 years in that frame of mind (called denial).
Even if we're doing fine physically though we usually come to a breaking point mentally and emotionally. If your ed is anything like mine it tends to escalate as the stress/anxiety builds. Eventually there's a cross-over and the ed starts to add to the anxiety rather than be an outlet for it. That's the point at which I usually begin the process of reaching out and getting help.
How do you feel the DBT is going for you?
Thinking of you (((hugs)))!
Love, Kelly