Kumari has a crazy obsessive disorder. It's one of the reasons you broke up with him because he's just too attached. Though, despite being a yandere, he really loves you. He was even willing to kill and stalk his love rivals. Kumari hates when you don't pay attention to him and wants to be around you all the time. He does respect your privacy, though. Besides all the yandere stuff, he can be a gentleman.