Thank you for your reply

No he has a health problem, he had a seizure at 18 that provoked all this anxiety. He has to constantly checks what he eats or drink and he lives with that fear of death.

Actually, I met him while I was working in another town for a contract. Since then, my contract ended so I figured there was no point staying here. I made friends and stuff here, but this city evokes too many memories with him and I got honest with myself: I was only staying to wait for him. That's why I'm going back home.