Why do people annoy others?

Lol my older sister annoys me on purpose ALL the time. I have a short fuse sometimes lol but most of the time I just don’t say anything, and it keeps building and building and building until I finally can’t take it anymore. THEN I flip out and yell lol :P

Haha yeah, lol my mom annoys me. my older brother and sisters get me mad sometimes, but never annoy me. lol like I dont live with my mom no more, and I call her everyday and talk to her on the phone and omg! she likes to repeat things, haha im just like “yupp” or like “uhmm hmm you said that already :p” and I would feel bad if I was like dude you’re being annoying by repeating yourself. Or hmm. my bestfriends are twins, and they argue over everything. like whose taking me home, one will say “im taking her!” the other’ll be like “no I am because I am going to my boyfriend’s anyway” lol then they argue when their mom tells them to do chores “well I cleaned the bathroom last weekend” ughh just someone clean it! hahahaha