Amanda Knox Likes 'Em White and Nerdy

Here's Amanda Knox's pre-Italy ex-boyfriend David Johnsrud (left), leaving Amanda's mother's house in Seattle earlier this week ... and her ex-boyfriend from Italy who was recently acquitted of murder, Raffaele Sollecito (right).

Amanda sought comfort by secretly meeting with David almost immediately after she returned to the U.S., but her dad says they're just friends.

To further prove the point, check out Amanda's dad, Curt Knox.