Fake relationship with my boyfriend

I dated Kim Taehyung, who was rumored to be handsome at school, and then broke up with him. However, after we broke up, rumors started to spread among my friends, and Kim Taehyung was using me. However, I lied to my friends and said I had a boyfriend after we broke up, and when my friends asked who my boyfriend was, I told them about Yoon Junghan. So in the end, we started a fake relationship.