In S1E5, Lorelai is explaining to Rory that she never set out to date Rory’s teacher. She tells Rory, “You can’t always control who you’re attracted to, you know? I think the whole ‘Angelina Jolie, Billy Bob Thornton’ thing really proves that.”
Angelina Jolie is an actress who married actor Billy Bob Thornton in 2000. Thornton is known for being anti-celebrity, and Jolie is known for her humanitarian work. Their relationship was eccentric; they wore vials of each other’s blood around their necks. They eventually divorced in 2003.