
Quoting
Mr. Knowitall
The difference is in how that claim relates to the rest of his story. If he is going to claim that he was fired, then he didn't quit to relocate as a trailing spouse. If he is going to claim that he quit to follow his spouse to another state, then he wasn't fired. If he is going to claim that he was fired, he's likely going have to deal with his employer responding, "No, he wasn't -- his job is still available, but he wouldn't provide medical clearance so that we could put him back on the schedule, so we continued his disability leave", or perhaps, "He never returned to work after his disability leave, wouldn't provide a medical clearance, and announced that he was moving across the country, so we never put him back on the schedule -- but we would and will, the moment he tells us he's available to work and provides the medical clearance."
He needs to figure out what story he wants to tell, and tell it. I would suggest the truth, but he seems to be concerned that a truthful application will result in his being deemed ineligible for UI.