I saw he was going to marry her, for family, perhaps political reasons, because her rank and connections suited him; I felt he had not given her his love, and that her qualifications were ill adapted to win from him that treasure. This was the point – this was where the nerve was touched and teased – this was where the fever was sustained and fed: she could not charm him.
– Charlotte Bronte
Jane Eyre, Chapter 18. The big question is – who should Rochester marry: Blance Ingram or Jane? A jealous Jane accepts that Rochester has social and family reasons for marrying Blanche, and on those levels they would be compatible. But Jane is convinced that Rochester doesn’t love Blanche and a woman like her kind would never, metaphorically speaking, win such a “treasure.”