God no, you should never worry about what other people think about you! That's an awful way to live your life, cos then nothing would be "you", you'd just be the version of you which you see as socially acceptable...if that makes any sense. Stick to your guns: being decisive, opinionated and strong-willed doesn't neccesarily make a person argumentative. I am all of the above- I don't crap from anyone and I've never cared about what people think of me!"- but I honestly can't remember the last time I fell out with someone, and I certainly never argue with my mates. Forget those ex-friends of yours, chalk it up as experience and don't dwell on it/them cos it'll only make you feel bad about yourself. You are in charge of your personality/ attitudes, if you don't like the way you've become change. x