Was I 'catfished'?

I developed an online relationship with someone I knew as a very young adult. The picture he sent was 10 years old, I knew he was somewhat overweight. I flew over to the USA to visit. This person wants very much to immigrate, and I was open to having a partner. He would never turn his camera on during our many hours of conversation. When he picked me up at the airport I discovered he is now morbidly obese. He wears orthopaedic shoes and sleeps with a Cpap device. I had never seen one of these, and the visit was quite odd. I live in an old house which has an old fashioned loo, and drive a very small car. He wouldn’t be able to handle the work that traveling over here is,(Australia), nor the life here. I don’t own a television or tumble dryer. I’ve never seen the tv shows that he schedules to watch. Is it possible for a 350–400 pound middle aged man to successfully lose half their body weight and become fit? Australia has socialised medicine and he would not be allowed to immigrate with his current health issues. He would not tell me all his medications, saying he did not know what they are for. I feel sort of catfished because I did tell him prior to visiting about this, and sent him the government booklet on immigration. Should I just leave it and not say anything to him? I feel very awkward.