Maybe I'm wrong

sometimes I like staying alone,I think that the world belongs to me.I can let friends happy,but sometimes I can't let myself happy.Argument,coldfighting

I always say I'm sorry first,because friendship is very importance.So,step by step,they don't mind me,they think every thing to me will become easily and nothing can fight me.In fact,someting let me turn to sad,but they didn't kown at all!!!!!!!