my choice of passive suicide is smoking. not that passive actually.
I once quit and got depressed from it, - thought it would pass, but 2 years later I started again and was immediately better. I started reading about nicotine and tobacco and the atypical development of dopamine levels in ASD - and realized just how addicted to anything dopamine I either am, or know that I could easily get - gambling, for example, I know that I'd get addicted if I ever started. Or certain video games. Adrenaline stuff, too. And sugary food.
anyway.
another thing that releases dopamine is working towards a goal/reward.
getting obsessed with work is something aspies can do very well - it seems, maybe better than others.
and it always gave me more kicks than socialising.
so... being a workaholic does it for me - and it doesn't matter how much I earn, actually, but it's more important that I can do stuff as well as I'd like to do it, i.e., am given enough time.
the whole social thing that's doing it for NTs ... it's not doing it for us. fair enough. but other things still can be good.
please note that I, too, am a rather lonely person, and am struggling with all that. but not always, and that got me into exploring more what does give me pleasure...
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I can read facial expressions. I did the test.