Prince’s security guards had to get Diddy off of Cassie at exclusive party: ‘He started to attack her’

Mia, Sean “Diddy” Combs’ assistant, testified that Prince’s security guards had to get the Bad Boy Records founder off of his girlfriend Cassie Ventura. Ventura and Mia snuck out to an exclusive party Prince — aka “The Artist” — was hosting without the knowledge of Ventura’s controlling boyfriend Combs. But Combs eventually showed up “caught…