I heard that he survived for tens of thousands of years, so are his teachers and friends mortal? Will Tang San miss them?

Tang San-Cheng Can lived for a long time after becoming a god, especially when he became the king of god, which can be said to be immortal. But his teacher didn't become a god, and his life span was only a few hundred years. Their friend (Shrek Seven) became a god with him, so Shrek Seven won't die, but all his other friends and teachers will die. After all, his life is there. The book doesn't say anything about thinking, personally.