Being ignored by friends tends to piss me off a bit. Happens fairly frequently due to being the "quiet person."
People can make annoying assumptions based on personality. Apparently I was too serious most of the time, then when I wasnt, people thought the damn opposite. Its annoying becuse you cant [censored] win.
Still im pretty antisocial, havent seen friends in person much (I have seen them like 3 times in over a year, maybe 18 months) since leaving school. So I cant say being ignored is an issue for me, sorry to hear that though.