Ok,here's what happened:
Spoiler:
Jack was in his cabin while the crew was on deck. For some reason,Jack just wasn't in a good mood. (most likely thing about what had happened..) He was just sitting at his desk,his head in his hand,just staring at a map.Lizzie knocked on the door. But jack just glanced at it,not saying anything. Then she just walks in. She said hisname and walked over to him...that's all I'm going to say!!!