After the situation with Mr. Mason, Jane admits that she is glad to be of service to Rochester. He puts this claim to the test, stating:
For instance, the night before I am married! I am sure I shall not be able to sleep. Will you promise to sit up with me to bear me company? To you I can talk of my lovely one: for now you have seen her and know her.
Using your prior knowledge of Rochester, which answer choice is NOT a reasonable explanation as to why he would ask Jane this question?