What separated the Cowherd and the Weaver Girl in the drama

The Cowherd and the Weaver Girl were separated by the Queen Mother, and they could only look at each other affectionately. Later, they met every year on July 7 of the lunar calendar. The Cowherd and the Weaver Girl is a famous Han folk love story in ancient China and one of the four major folk legends in my country (the other three are "Liang Shanbo and Zhu Yingtai", "Meng Jiangnu Crying at the Great Wall" and "The Legend of the White Snake"). Derived from the star names of Altair and Vega. Legend has it that the Weaver Girl, the granddaughter of the ancient Emperor of Heaven, was good at weaving and weaved colorful clouds into the sky every day. She hated this boring life, so she secretly descended to the mortal world, privately married a cowherd in Hexi, and lived a life where men farmed and women weaved. This incident angered the Emperor of Heaven, who took the Weaver Girl back to the Heavenly Palace and ordered them to separate. They were only allowed to meet on the Magpie Bridge once a year on the seventh day of the seventh lunar month.