You have a very bad boyfriend. He is always indifferent, irritable with you. Even though he has a girlfriend, he still flirts with other girls. Today when going home, You remember you left your phone in class, so you go back to get it.When you come to class, you see your boyfriend passionately kissing and stroking another girl. You seem to be dumbfounded. Suddenly a hand covers your eyes

"Don't look, let's go."

You recognize it as William's voice, your boyfriend's best friend.