Annoyed with my brothers?

A few days ago I went to the movies with my friends. I'm 15 and my brother who is 16 years older than me made all this crap up saying I have a boyfriend and I'm going to the movies with him. Which I dont and I didn't . I ended up going with my friends and saw the movie. My brothers were so annoyed with me as I saw the movie "without" them. I told them I would go again with them if they wanted since they were so jealous. Well today they were looking after me and were like we are going to go see tron. And I'm like did you want me to come and both were like no your not coming you already saw it without us. So I said fine. One said I'll go see another movie with you Nd I said no I'll go see tron again since it was so good. Well they left me in the morning it is now 3.30 here. I'm so annoyed becAuse they are punishing me for going out with my friends. I'm always stuck in the middle with family and friends. My parents always say it's fine and I can go with my friends but my stupid old brothers treat me like a baby and convince my parents not to let me. They need to go find a wife and start there own family. I dont understand what I did wrong? This is the first time I went with my friends too!