Lindsay Lohan is not engaged to boyfriend Wilmer Valderrama, says her mother Dina, they've just exchanged promise rings. Male fans of the young starlet were left distraught after the couple were spotted shopping for rings in a jewellers, but Dina says there's nothing to worry about. "Wilmer's a sweetheart. He is very protective. He's basically Lindsay's first boyfriend," she told reporters. "They're going to make mistakes now. They're living publicly. They're going to have fights. It's normal behaviour." Meanwhile, a smitten Valderrama coos about Lindsay: "She's a smart girl. She knows what's good for her." SOURCE: IMDB