Yes, he tried to move on even if he isn't truly happy. And I will explain more what happened to him to end in this situation :) but it's even more interesting if there are such problems like this one, too easy things can become boring sometimes :)
I can't answer to your question yet, it's indeed a health problem but I can't tell you more, I'm sorry TT xD
I hope you won't be disappointed with the next chapters :D Thank you for reading and commenting :D