Whoever this is I know you're in here.
I was looking through my gf's facebook and apparently you're a friend of her friend.
Your friends are talking shit about you.
They're a bunch of normies who think you need therapy.
They literally think you might go Elliot Rogers on them except that you're too big of a pussy.
Nigger, please lower your power level or go for a high score.
Mostly inane garbage. I'm guessing from this conversation that he has a larger pool of friends that all hate him.
Had a similar thing happened to me, but I sperg'd out much less and the other pretended to care about me much less.
OP if you care to go the extra mile and google his name/username, see if you can find some means to contact him and tell him that. As a robot I'm sure he'd like to know what others really think of him.