Vonn - No men do not come with instructions nor do we as women. LOL. So, because I am not a man and don't think like one I can't answer why he is not calling you back.
He may be thinking that you are way out of his league. Let's face it, despite your illness and disabilities, you do SO, SO much. There is the perception out there that disabled and ill people are not able to do anything. It is quite the contrary for many of us. We have limitations but are still able to do things. That kind of freaks people out; at least in my experiences.
Hang in there Queen Vonn. You'll get that hug from someone when the time is right.