Some time in the afternoon I raised my head, and looking round and seeing the western sun gilding the sign of its decline on the wall, I asked, “What am I to do?”
But the answer my mind gave – “Leave Thornfield at once” – was so prompt, so dread, that I stopped my ears…I could not bear such words now. “That I am not Edward Rochester’s bride is the least part of my woe,” I alleged, “that I have wakened out of most glorious dreams, and found them all void and vain, is a horror I could bear and master; but that I must leave him decidedly, instantly, entirely, is intolerable. I cannot do it.”
But, then, a voice within me averred that I could do it and foretold that I should do it. I wrestled with my own resolution: I wanted to be weak that I might avoid the awful passage of further suffering I saw laid out for me; and Conscience, turned tyrant, held Passion by the throat, told her tauntingly, she had yet but dipped her dainty foot in the slough, and swore that with that arm of iron he would thrust her down to unsounded depths of agony.

– Charlotte Bronte

Jane Eyre, Chapter 27. When Jane wakens in the afternoon, her mind is in torment is in torment. After finding out that Rochester already has a wife, she faces a difficult and painful decision. She has to decide whether to live with a married man she is passionately in love with, or leave him forever. Her conscience wins over passion and she decides to leave Thornfield immediately.