Wat should I do ? Can anyof u tell me ?

i have a friend, I treat her as my sister . I dote on her alot that maybe can say that already above all. To be frank , I will always think for her n take note of wat she wan . Cos I wan her to be hapi without trouble. But , these few days , we have a lot of argue . I know she dun feel gd , I also. All this can be prevent if I keep quiet. I cannot ! Cos I c her xin ku , for a person which may not put her in the heart at all! I not angry or wan to be jealous . I know my position . I c her like that i v pain n dun know wat to do? now we did not talk to each other already.