Mr Bingley, 'the single man in possession of a good fortune'

Bingley, who sets the book going, is kind, easy-going. All the beautiful young women seem to feel attracted to him, indeed he enjoys dancing and chating with all of them, totally opposite of his great friend Darcy, somewhat unreflective. The best example of Bingley's ductility personality is shown when he falls easily back in love with Jane after his friend's permission, now that he enjoys the approval of this friend.
Bingley as well as Jane are less intricate and developed characters as Darcy and Elizabeth (in contrast with the other pair or love interest of the novel).