dude I've totally done that, not on weed but on shrooms, my buddy just tells me one day while we're puffing that he's going to delaware (following some girl of course) I mean, he just broke it out like that totally bummed my buzz but then two weeks later I'm trippin and I just feel like i"m in his shoes like his parents are my parents... whole nine yards I think It's mostly due to the fact that the facet of your life, when you're that close to someone they become a part of your very own personality that you take your own set of emotions from then ya' know?