Aiku is still not over with his past lover, she always prioritize his past lover over you. sometimes you guys dated, his ex would call him to help him with something and he couldn't just say no, so he left you there saying he will be back but after hours, he would forget you. when he saw you, you always make him remembered his ex because of how the same you and his ex are. sometimes he would even call you by his ex's name.