Saying "Screw the EU!!!!!! Hope it dies. FOREVER!" just because of one lousy book is silly. There are plenty of other works in the EU that do Han -- and the Han/Leia relationship in particular -- justice.
This story, for example
http://starwars.wikia.com/wiki/A_Valentine_Story
is an excellent pre-TESB story which explores Han and Leia's developing feelings for one another (the art is awesome as well -- it really captures the spirit of the characters, and the colours are gorgeous).