These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Nicholas Nickleby
Canon Sue: Nicholas, Kate and their love interests.
Ho Yay: Nicholas and Smike, the mentally handicapped orphan he meets at Dotheboys Hall and later rescues.
Nicholas: My heart is linked to yours.
Les Yay: Madeline initially has "a warmer feeling" for Kate than for Nicholas; it's implied that she mainly falls for him because of his resemblance to his sister.