Eric wants to get more humiliating pictures of the snooty critic, so he nose hooks her and then straps the ballgag back in. He ropes her neck and ties it down to the front table legs.
He is no fan of Amanda's after the way she disrespected his meal, which took much planning to execute and prepare. Her wrists are untied and she is ordered to strip nude.
He gets out his camera again and gets some rather great images that will look perfect framed and hung on the wall. He finally unties her, except her wrists, and proceeds to roughly grope and manhandle Amanda.