Four weeks is as much as Elijah could take. After four weeks, he insisted that his cast should be removed saying that he needs to go back to work. But J asked for another two weeks at least, anyways, Elijah was still working at home despite his cast and J's insistence that he should rest.
In the past four weeks, Sadie really didn't come back which pissed Elijah off. He only told her not to come back in a few days because he needed to rest. But she didn't come back for four whole weeks!
Not to mention she really didn't bring or at least send him food. Though he was the one who told her so, he regretted it. He was hoping that Sadie would be stubborn and not listen to him but she was not. She really didn't send him food!