George Eliot said this quote
“ Whatever else remained the same, the light had changed, and you cannot find the pearly dawn at noonday. The fact is unalterable, that a fellow-mortal with whose nature you are acquainted solely through the brief entrances and exits of a few imaginative weeks called courtship, may, when seen in the continuity of married companionship, be disclosed as something better or worse than what you have preconceived, but will certainly not appear altogether the same. ”