Jacob continues his trend of stretching the truth, and the book illustrates how, as a result, those statements continue to undermine Jacob’s dad’s trust in him—that is, the more Jacob lies, the more they grow apart, just as Jacob’s dad did with Abe. Additionally, the fact that Jacob looks so intently at Emma’s photo to ensure that she’s real suggests the idea that she
isn’t quite real—that being stuck in the time loop means that she isn’t able to live life in the same way Jacob can.