Your relationship with him is unclear, not friends but also not couple, but he still gives you his attention and also some gifts, he even admits that you are his girlfriend to his friends, one day you both graduate from high school and choose different university, his character started to change and he became friendly with many girls, your friends who were at the same university as him said he was very friendly and liked taking photos with other girls, if someone asked about you, he would answer that you were just his friend. One day your friend says that he already has a girlfriend there (even though he doesn't, it means he is very close to another girl)