Friends? a word cheaply used to describe any person u might know by their first name?

today in my minor class. i told them using the most blunt way whom i might consider a friend and whom i considered a aquaintance. i was piss and anything tat comes to my mind came out.

we were doing a business simulation game for our minor module. another team and my team settled on a deal. i din realised it cos i tot we were "frens" and gone into the deal without much thought. when i started to do my 2nd deal. i realised my 1st deal was rubbish. how can i agree with it... when they still ask for more benefits... i was even more pissed. when i realised that i was shortchanged so much in the process, it pissed me off. so the evil middleman comes out and decided to sabotage them. striking another 3 deals swiftly, i decided i wan to back out and pay the penalty. in the process starving them of the technology they were suppose to get and making sure they have very little time to prepare a 2nd deal with someone else. i was evil but it make me shuang. end up, they, whom were high and mighty and leading became the 4th. (by the way i was 4th and became 2nd at the end).  

well end up during the evaluation of the game my team had to trash things out with the other. it got heated and i said told them i went into the deal thinking that we were friends. later it became just business. some guys asked "so we are not fren?" i told him and of cos the rest of the class as well that in 2 years i of my jc life, i only made 1 friend. the rest are just aquaintances. i told them another example that while inviting a fren to my bday party in sch. someone overheard and asked me why i never invite her. my direct reply to her (some gal thats quite cute) was "you also not my fren." it was mean but im being frank. i think i pissed people of that tot of me as a friend. but i also made sure whom i accept as a friend knows that they are my friends. well i guess today i made some friends and made many aquaintances pissed. shit happens but who gives...