My Cute, Quiet Girlfriend Since Childhood Is Walking Down a Love Hotel Street With a Guy Who Is Not Me

My girlfriend is my childhood friend who has been with me since I moved here when I was in the third grade of elementary school. She is a quiet and very pretty girl. I loved her so much that I confessed my feelings to her on a whim back in junior high school. She reciprocated my feelings, and we became lovers. We loved each other and were spending our days happily. But one day I saw my childhood friend and beloved girlfriend walking down a love hotel street with the most popular guy in our grade. She and I had never had s*x before. But she had already been having s*x with someone else…