[echelon_musk]

I recommend he get sober; no drugs or alcohol. Eat plenty and sleep plenty.

He should follow the advice of his doctor however the medical profession tends to treat most psychotic episodes as wholly delusional.

If he denies any validity or even the existence of this episode in order to recover he runs the risk of treading the same path and risking another episode.

There can be insight in these episodes but it requires some recovery to see objectively. I suspect he could know what caused the episode but it may be suppressed into his subconscious.

It's a life's work to integrate. Therapy can help. Meditation can help (with the caveat that if you get serious with practice it can trigger another episode).

Ultimately if I was you I would consider moving out. Depending on how much support he needs in this time it may not be a role you are prepared for or should be expected to take on.

Remind him of his good qualities and it will always be beneficial.

Advice my own. I'm a fallible human being.