My Contract Romance with My Childhood Friend

My childhood friend and I were dating under an arrangement. I helped fend off his admirers, and he paid my living expenses: 300,000 a month. One day, we went out to eat together, but someone stopped us along the way. It was a young woman I didn't know. She burst into tears in front of my childhood friend. "Jiang Cheng! I'm pregnant!" He immediately looked at me. I hesitated. "Then... should I leave?"