You could say that an extrovert is someone who is more inclined or predisposed to seeing the good in others whereas someone who is "sad, lonely" is more predisp

You could say that an extrovert is someone who is more inclined or predisposed to seeing the good in others whereas someone who is "sad, lonely" is more predisposed to seeing the bad. Reminds me of the film There Will Be Blood, where Daniel Plainview says something like "I can only see the bad in others" (not exact quote). It makes it hard for him to form long lasting relations with anyone, or a successor he can trust. But as a somewhat neurotic introvert I can often understand that sentiment. It's like I'm preprogrammed to see the bad in people before the good.