kariki:

I’ve seen it asked before why Josh would make Chris and Sam, his two ‘best friends’ (and Ashley) go through the worst of the pranks.  I personally thought it was obvious but I’ll just put my 2 cents in anyway:

They were suppose to be the heroes.

Josh had planned to put it up on the internet, let it go viral.  A video of his best friend, saving and getting the girl who he’s saved multiple times that night.  A video of Sam being a badass heroine.

The others?  Forced to stumble around in the dark woods, meeting jumpscare after jumpscare (The mask in the truck, the scarecrow that pops up, the painted words in the cable car station) that he had set up.  They were just the losers you laugh at and forget.

According to his delusions, Josh was rewarding Chris and Sam by making them the stars of the video.  THEY would be the most famous out of them all!  Everyone got punished by being forced to feel the same thing the Twins felt but only Chris, Sam, (and by association, Ashley)’s suffering would have any meaning, have anything come from it.

Irrational thinking is a symptom of his illness/being off his meds.  Josh had convinced himself that his friends would forgive him and do it easily at that.  When they didn’t, that’s when he started losing his grip on reality even further.