In LNOL, Rikus aunt seemed very cold and strict to me but she was a lot warmer and more human in 180. Am I imagining it?
You’re not imagining it, but it’s not because of the different timelines. Riku’s aunt is still very much a very cold and strict bitch to Riku. But mostly, it’s only to Riku. She was kind of warm and more human to Sora because he wasn’t Riku, basically. She’s very friendly and outgoing to most people, but she’s somewhat of a gossipy, vicious viper behind people’s backs. She has quite a lot of public masks, but Riku sees a lot of her bad sides.