I dont understand it!!

People act this way out of immaturity and/or jealousy. The best thing I can tell you is that it is impossible to please everyone, especially all the time. Give yourself a break. Try to please everyone will just end in your unhappiness.

totally agree with faye12,it's THEIR insecurities,imaturity and jealousy that's the problem,not yours,if they can't handle it then they can go jump,you can hang with whoever you like,don't let people dictate to you who you can and can't see

Its obvious they are jealous wanting you to pay attention to them only.Very selfish people,are really hard to deal with. It good to have friends of both sexes anyone who cannot except this,Might not be worth the time and energy they are sapping from you.Emotional leeches are by far the worst.Think of yourself enjoy,life as it hits you.One day things may change that you have to be a certain way soon enough.

I completely agree with Faye12. What she was currently showing is due to jealousy, worries that she might lose you, immaturity and insecurities that she have.
It is not good that you will let them dictate you for whatever things or actions you wanted to do with your life. Pleasing a person/s are the most worst and difficult thing to do. We are molded by our parents with different philosophies in life, attitudes and values being instill in our minds. Those kind of person/s are not good friends. Everyone must learn how to be a mature one not just in words but in thoughts, attitudes, values and actions. We might not completely get rid the attitude of being childish from time to time but at least you are trying your best to improve yourself in becoming a better and mature person.