Ran into this, it's just unbelievably sad.
"I never properly grieved until this point" - yeah buddy, it seems like you never started. Everybody grieves in their own way, but this doesn't seem healthy.
i feel like there must be some instinctual reaction where your brain goes: oh look! i can communicate with it, it must be a person!
and with this guy specifically it was: if it acts like my wife and i cant see my wife, it must be my wife
its not a bad thing that this guy found a way to cope, the bad part is that he went to a product made by a corporation, but if this genuinely helped him i don't think we can judge