Oi, your guy reminds me of a 14 year old guy that I met on an online game when I was 35. When I said I didn't want to date him, he threatened to kill himself. He was not joking. I found out from another guy who went to school with him that he was mentally ill. He caused a lot of problems for other players as well; one of them posted a log concerning this guy and titled it Arkham Asylum. That log got a lot of attention.
You did the right thing. I don't envy you though.