After I Lost My Memory at Men's College, My Girlfriend Regretted It

My girlfriend Liu Rumeng chose to trick me into enrolling in a men's academy in order to travel with her boyfriend before getting engaged. She said that as long as I could graduate successfully, I could marry her. After enrolling in school, everyone wanted to make me understand that I was not worthy of Liu Rumeng, let alone marry her. As she wished, I graduated successfully, but I forgot everything about the past with her. I don't love her anymore. However, she regretted it.