So I am perfectly sure that this person had suicidal tendencies, they were socially awkward, they did not respond to my message in the LINE app.
I sent them a letter through a Japanese address, no response, maybe they just left their last place of residence?
They have not been in any social network since February of this year. I'm losing hope. I really appreciate this person. I also don't want to look like a stalker in their eyes. I just want to know if they're okay, how can I find out about that?