My mother and I just left a toxic relationship. We are currently staying at my grandmothers. Everything has been going good. My mother has found a decent job, and I am excelling in school. I thought we were both at peace. Until one day my mother was in the shower when I saw a text message on her phone screen, it was from her toxic ex. Who I disliked from the beginning of their relationship. Here's what happened. I read people easily, and when I first met him, I got a bad feeling. However, I didn't want to ruin my mothers happiness. So I kept to myself. When I first met him, he acted all soft and sweet. In reality he is a big man, about 6'3. Which scared me even more. Everything was fine the first month, he slowly started trying to ruin my mother's relationship with me. I caught on to this and tried to tell her, but she wouldn't listen. He started treating me badly, and left me and my mother to do all the housework. I was under a lot of stress from moving schools at this time, and my mental health was not good at all. (At this time nobody knew about my mental health) So this stressed me out even more. Things got worse and worse, they started arguing more. And he would show his real self, in reality he was a violent man, and a narcissist. He played mind games with me and my mother. This got so bad that I just stayed in my room all day. One day my mother found out about my bad mental health and talked to me about it. She realized she wasn't the only one being manipulated by him. So she decided to move us back to our hometown, when she told him about this he crashed out. He called my mother multiple horrible names, (if you know you know.)He told us he wanted us out of his house by Sunday. So we packed up and left. A couple days later he started texting my mother and started apologizing. He came up with excuses to see us, like dropping off stuff we left. (It wasn't even our stuff). My mother said she ended things with him because she saw his true colors. (Fast forward to now). I just found out that she met up with him yesterday. She doesn't know I know. I'm furious about this because he put us through hell. I really hope we don't go back. I don't want anything to do with him anyways. But I'm afraid to tell my mother. So, AITAH?