How did Zhang Fei react when he heard that Lu Bu called Liu Bei a good brother?

After Lu Bu ambushed Cao Cao's Yanzhou, he was finally defeated by Cao Cao and expelled Lu Bu from Yanzhou. Lyu3 bu4 cornered, listen to the advice of Chen Gong, defected to liu bei. Lu Bu came to Xuzhou with defeated troops to meet Liu Bei. After Lu Bu and Liu Bei met, Zhang Guan was by his side, guarding against Lu Bu. In order to befriend Liu Bei, Lu Bu called Liu Bei a "good brother". Zhang Fei, who had always hated Lu Bu, immediately opened his eyes and shouted at Lu Bu, "Bah! My eldest brother is Han Chinese. What kind of person are you? " In fact, before that, Zhang Fei had always called Lu a "three-surname slave", but now when he saw that this "three-surname slave" Lu Bu and his eldest brother Liu Bei were like brothers, why didn't Zhang Fei, who had always been quick-tongued, get angry? Zhang Fei lit a fire, but it was terrible. He directly challenged Lu Bu, "Come, come, come, I'll fight it with you for 300 rounds!" " Zhang Fei was very happy after this criticism. And Lu Bu was scolded by Zhang Fei, and he was very embarrassed. If in the past, Lu Bu couldn't help it long ago, he would definitely have a big fight with Zhang Fei, but this time, although Lu Bu was very angry and his lungs were about to explode, he still held back, for fear that once he really had an attack, he would lose his last shelter ... So, for Lu Bu, life is more important than dignity.