Xiang Bo, who let Liu Bang go at the Hongmen banquet, got the promise that Liu Bang made to him after winning the world?

Accurately speaking, Xiang Bo finally didn't get Liu Bang's promise to him. After Liu Bang defeated Xiang Bo, he remembered that Xiang Bo had made the title Sheyang Hou to show his gratitude. Although this is a Hou, in fact, this is a small official and the fief is not very big. And Liu Bang didn't marry his daughter to Xiang Bo's son, so to some extent, Liu Bang broke his promise. He didn't make a promise to Xiang Bo before, even Liu Bang did it. So on the whole, Xiang Bo just drew water with a sieve and got nothing. Then every time I look here, I wonder if Xiang Bo has a hole in his brain. Instead of helping his nephew, he went to help a stranger with another surname. The other party cheated him in a few words and gave him a blank check that Zhang Yongyuan could not exchange. What's even more funny is that Xiang Bo took this empty check seriously and even betrayed Xiang Yu. Of course, it is because of Xiang Bo's betrayal that the trend of history can be changed. Imagine, if Xiang Bo didn't stop Xiang Zhuang's sword at that time, then I believe that Liu Bang will definitely die by Xiang Zhuang's sword, and then Yu Can will destroy all Liu Bang's troops after destroying Liu Bang, and no one can shake his position from now on. It can be said that being king or emperor is as simple as eating and drinking, and then it will bring us a brand-new history. However, the possibility of all this was destroyed by Xiang Bo's hand. He personally protected Liu Bang, saved Liu Bang's life and let him continue to deal with Xiang Yu.