‘Mr Wickham’s circumstances are not so hopeless as they are generally believed to be.’
Rumour and reputation can show people in a different way to how they really are, and their reputation can exaggerate their personality and situation, as it was for Wickham.
‘No man in his senses would marry Lydia.’
Lydia has a reputation of being a young, naïve and silly girl, making her less attractive as a wife.