Susan knew Lauren said he needed time alone, and he was okay with that, but it doesn't help him from being upset too. He needs his brother and wants him here with him. But at the same time he knows that Lauren needs things too and he needs to let him get what he needs and wants... He just doesn't like it.

For a while Susan waits for Lauren, hoping he'll come back, but as the time stretches on he starts to worry. What if something happened to him? What if he got hurt or lost or ran away? The thought makes him upset, and so he quickly stands and starts off in the direction that he saw Lauren go in. Of course he doesn't actually know where Lauren is, and so it's hard to try and find him... So really this is just him wandering through the forest, looking around and calling out his brother's name every so often.