Dog Brother, an ordinary person named Ai Li, was involved in a love affair that caused jealousy and betrayal. His girlfriend, Xiao Mei, cheated on him with another man. Dog Brother's heart was shattered into pieces after learning the painful truth. Despite feeling betrayed and broken-hearted, Dog Brother tried to maintain his composure and dignity. He didn't want to stoop so low as his jealous girlfriend, who had been accusing him of infidelity without any evidence. Instead, he chose to forgive her and hoped that they could work through their problems together. However, Xiao Mei refused to admit her guilt or apologize for her actions. She continued to deny the truth and blamed Dog Brother for being too possessive and controlling. This made Dog Brother feel even more hurt and frustrated. Despite the difficulties in his relationship, Dog Brother remained determined to keep his cool and not let his emotions control him. He knew that love was a complex emotion and sometimes it required sacrifice and understanding. In the end, Dog Brother decided to distance himself from Xiao Mei for a while. He needed time to heal and regain his self-esteem before deciding what to do next. Though their love affair ended in heartbreak and betrayal, Dog Brother remained a true gentleman and carried himself with dignity throughout it all.