Sorry I was sleeping. It sounds like there are definitely feelings there on both your parts. The reason for breaking up is silly. That may be why you are stuck in caring for this man. Breakups should be for valid reasons. Because this is silly you have not moved on. The key is to find out if he has or has not as well. I would contact him and let him know your feelings have not changed. Make your argument for being together. Age is not as big of a deal now. Maybe he won't ever get sick. Tell him and see where he is emotionally. Go from there.
If he is over it, then you have no choice but to move on. He may be steadfast in this thought; then you have to find a relationship eventually. It doesn't have to be day one. The key lies with him. He may totally have changed his mind and be too embarrassed to call/
If this was helpful press accept