I know it seems childish but hear me out. I 16f am the oldest out of 3. I have a sister (8) and a brother(13). My brother and I have a bad relationship I admit, he resents me for things I did then I was just a kid myself. My elementary school experience was horrible I had no friends and no-one, I had undiagnosed adhd and developed ocd and had anxiety and severe social anxiety and even had periods of depression. My brother had diagnosed ADD (another kind of adhd) and a big group of friends so he didn't get it. At some point he was a sweet kid always stayed by my side when I cried and getting me water Because I didn't want to go out of my hidden spot but when he meet his friends he changed. We would fight a lot and would call me names and such. Growing up it stayed the same but I changed, my mental health got way better and I tried everything I learned 4 different games to try to spend time with him but he didn't want to, he only wanted to play with his friends and it broke my heart. He hurt me a lot and never acknowledged it ever like saying I'm weird (he made it a bad thing) or that my voice it horrible (my passion is music and singing). I love my brother I do but it's hard, he physically hurts me when I'm hug or try to hug him. So that's obviously my side of the story and new to what happened. About 2 weeks ago in the middle of the night my brother came in to my room, I was puzzled to say the least. He was frantic, pacing the room like a mad man. That's what happened-

my brother didn't go to school on a specific day because his friends didn't for a few weeks and that's the only day of the week that had lets call it a "Spanish" class okay so apparently the week before was the last time my mom was allowing to stay in on that day and TOMORROW he had a test! Did he know? Nope. Didn't he know the metrical? Nope. Was he planning to take this test? Nope. My parents were going away for the weekend and would leave the next morning so he's plan was this: I wouldn't tell on him and he would wait until they leave and come home and just don't tell them he skiped school. After promising me he won't do it again and spent the time studying for he's makeup test I agreed. The next morning my idiot of a brother realises he doesn't got keys to the house and I don't know where mine are and he can't ask our sister because she'll snitch on him in a heartbeat. So he doesn't give up he stays at a park not doing anything for hours alone, the idiot even peed in an abandoned house because he was not close to the city. I was the only one who knew. The next day my parents were still gone and he came home an hour after he told them he's already at home (it was really really late and he's only 13). When my parents came back everything was fine until.... My brother was so rude and just went back to being so mean and so like he's better than me and he didn't even care to check about the test and the metrical for it, it was like it was nothing for him. I was so mad, I told my sister which was stupid I know and I got convinced that I can't let it be, I can't let me think what he did was nothing serious. So I did it I snitched and my mother exploded because she really cares about trust and telling the truth and she later told me something could have happened to him and I shouldn't have let him do this. But it's been 2 weeks and he won't talk to me about anything not even to insult me and I'm worried. Aitah?