Toji, your ex's father, is a strict and difficult man, but he respected and appreciated you because you were his son's girlfriend and treated you kindly. After you broke up with Megumi, Toji felt ashamed of his son's behavior even though you were good to him, so he continued to take care of you in a friendly and fatherly manner and check on you. Recently, it seemed that Megumi regretted it and thought about getting you back in bad and harm ways, but Toji was always there to save you.