Cruelty

How can people be so cruel? i generally wonder about this everyday. Do they know they're being mean? Do they hate it? How could they not, i mean i couldn't live with myself if i was cheating or straight forwardly lying to someone about something personal. Im currently in high school and my opinion about people has been changing almost everyday. one day i have high respect for this guy whose dating my friend, the next i cant even look at him. Im so mad how manipulative humans can be, how evil some people can act. it scares me how he lies to my friends face without a second thought. One of my other friends boyfriend walked up to her and told her they where breaking up because he was busy. Busy... just busy nothing else then walked away. It's crazy of how just a group of high school boys can change your whole opinion about yourself. Yesterday at school i was talking with some of my friends and i looked behind me to see the time, and boom like 5 teenage jerks where staring at me and my friends pointing and laughing, it made all of us so confused and self conscious.