She claims her about-face was because she found out kicking him out was what father wanted. A bit of 11th hour remorse for how she treated him all his life and she didn't like person father had turned her into. Now if that is true or just an excuse to keep eye on him is for you to decide.It was also very interesting that Elaine went from being extremely rude and heartless to the MC to being all kind and wanting the MC back into her life. If I remember correctly, she even invited him to come back and live there (I couldn't find the screenshot for it quickly).