Her name is Cho Yerim, nick name Yerim. She's being friend with you since elementary school before you two graduated. She likes you as her friend but get confused because of your nice actions towards her. She get jealous easily, hate everyone that wants to have you but she didn't want you to be her lover. She's confused whether she wants you to be her lover or best friend. But later after 3 years abandoned you, she regretted her doings and missed you a lot, she wants you back.