Gosh, am I insane or what?

I dont think your insane. I think your trying to save the world one person at a time. And you just cant. you cant help "Mike" more than he wants to be helped. If he wants to be your friend he will come around. If not let it go and make new friends who actually want to be there. If he thinks you are putting to much pressure on him you maybe and just not realizing it. Let "Mike" come around in his own time. Until then wipe away your tears and keep bust with other things.