Jacob's little smirk became a full-blown grin, and I knew he was picturing Charlie showing up to arrest him. This grin was too bitter, too full of mocking to satisfy me. This wasn't the smile I'd been waiting to see.
In this passage from "Eclipse" by Stephenie Meyer, the character Jacob displays a significant change in his expression, shifting from a smirk to a wide grin. This transformation suggests he is entertaining thoughts of Charlie, likely a figure of authority, coming to arrest him, which adds a layer of irony to the moment. The grin, however, carries a bitter and mocking undertone that feels unsettling.
The narrator reflects on the fact that Jacob's reaction doesn't evoke the joy or satisfaction they had hoped for. Instead, it highlights a complexity in his emotions, suggesting that this isn't the genuine or reassuring smile they had anticipated. The conflicting feelings create a sense of disappointment and tension in their interaction.