One more significant thing that comes up to my mind:
I know he took some antidepressants. He told me about that, and also that those antidepressant didn't help. Anyway, I'm quite sure that he still took them in the first few weeks we were together because I saw him taking a pill from a package.. And I saw him doing that days in a row.
Even though he states that antidepressants don't help him, they maybe still DO help in some way? Well, he's an extraordinary intelligent and also stubborn person and I doubt I could find a way to make him take them again, even if they might help.
I am sorry for having posted all these confusing thoughts recently, but I've been thinking a lot and whenever something relevant crosses my mind, I really feel like telling you.
Thank you!