YTA. She severely overreacted with the punishment, yes, but only because she'd genuinely thought you'd stolen something and was trying to teach you a life lesson to prevent you from doing it again and potentially ruining your life. That's the role of a parent when it seems a child is going down the wrong path. When the truth was known, she owned up to it--she apologized and tried to make it up to you. Why? Because the punishment was never based on hatred, but rather on her responsibility as a parent. You have every right to be angry and frustrated, and I'm not invalidating your feelings, but you acted like an immature child. Take it from someone whose parents are dead. I wish I could see them again. I wish I could argue with them again, because it would mean they were alive. Severing your relationship with your mom because you're angry at her over a punishment you received--whether or not it was fair--is a mark of immaturity. It's time for you to grow up, be an adult, accept her apology, and let her make amends. Material things are meaningless, and your boyfriend at 15 wasn't likely going to be a long-term relationship anyway. You're a child, and relationships in childhood end. It's the nature of things. It's time for you to move on. She knows she made a mistake. Do you know YOU made one?