According to nydailymail.com
The dispute that prompted Beyoncé’s sister to attack Jay Z at a Manhattan hotel centered on the rapper’s wish to keep the party going at a shindig hosted by RiRi, the Daily News has learned.
Tensions were already running high when Jay Z — while walking to the now-infamous Standard Hotel elevator — said he was going to the Rihanna bash rather than heading home with Beyoncé.
“Why can’t you go home?” a drunken Solange Knowles said to her brother-in-law as they left the swanky May 5 Met Gala after-party, a source told The News.
Then the 27-year-old singer turned to her 32-year-old big sis Beyoncé.
“Why does your husband need to go to the club right now?” Solange asked, according to the source.
An incensed Jay Z took offense to Solange getting involved in his business.
“You’re one to talk,” he shot back at Solange, the source said.
