AITA for being the reason my stepdad moved out

Hey, this story is not recent and happened a few years ago, and I wanted to see if it is my fault that my stepdad left. When I was about 5, my mom started dating a guy, 49 M. Jason was different, and at the time it wasn’t a problem. We had a lot of fun together, but slowly he and our family started to gain different feelings for him. He started to be very controlling, making us clean the house multiple times a day. He would say how we did something wrong or how we didn’t even clean at all while he drank till he would pass out. I and my sister would have to deal with this for 6 years until she moved out to our dad’s because she had enough of him. I stayed because he told me I wasn’t old enough to choose who I got to live with and how I would lose anyway, so I stayed. I didn’t want to leave my mom with him anyway. Since it was just me, I had to clean the house by myself, and I did it properly every time. After I was done, Jason would say I wasn’t, and I ignored him. I learned his game and would not let him control me. I would slowly push him out of my life until one night when my mom and he got into the biggest fight they had yet. She ended up locking him out of the house, and he would bang on the back window yelling to let him back in. He ended up breaking the window, which left me in shock. I didn’t want to move; I was stuck. I was put back into my life where any word from him would hit me like a bullet. She got back into the house and cursed out my mom, saying how none of this would have happened if she had never locked the door, and finished off the night by yelling at me to get lost and to stop eavesdropping. Then I was stuck in his loop for the next 2 years, and I was able to push him away and was reflecting anything that was said to me with fast comebacks, and he was pissed every day, and I loved it. Then, out of nowhere, my grandma passed away, and my mom was distraught, and Jason was nowhere to be found. With all of the emotions going around, I was glad he was not there. We found him at home, and my mom was not having it. 2 weeks later, on Dec 16, I get called downstairs for a family talk, and we discussed how Jason would be moving out, and he blamed all his reasons on me, how I ignored him, how I was treating him like shit, and how I never helped around the house. I was furious, but I didn’t want to say anything because I was happy that he was moving out. After he moved out, I confessed to my mom that I have been doing all the work around the house; he never got his lazy ass up, and I did ignore him as much as possible, and she said she knew and that she was just happy that he was moving out. Now my sister has moved back in, and we spend a lot more time together as a family.