My DH gets rid of my belongings

My DH has ADD. Many of his behaviors I attribute to ADD. However, some of his behaviors I'm just not sure about.

For example, He gives away, throws away, and sells my belongings. These are items that I made, that I bought or that have sentimental value to me. It's very hurtful. Once he tried to throw away a box of keepsakes from my childhood. Luckily, I caught him before he succeeded. His personal belongings, on the other hand, he cherishes and keeps almost to the point of hoarding. In your opinion is this behavior linked to ADD or is something else involved?

He also ignores me and offers no support when I'm ill, too ill to take care of myself. I have come to expect this behavior. However, recently I had an inner ear infection that caused extreme nausea. I couldn't even move my head without vomiting. He did something very strange. He called some friends and told them that I was very ill and that he was going to take me to the emergency room. In reality, as soon as he hung up the phone he left and took the kids horseback riding for the afternoon and did another activity all evening. He left me helpless in the bed. Is this ADD?