The ENQUIRER talked to insiders who said the couple both suffered from serious jealousy issues. Brian reportedly
flipped out last year after he caught Shia LaBeouf trying to text Megan — after they'd hooked up while co-starring in two "Transformers" movies! “There’s no way Brian would be okay with her having anything to do with Shia,” a friend told The National ENQUIRER. “He was insanely jealous of her career and of other men.”