waynestuff.wordpress.com/2008/10/07/what-does-love-have-to-do-with-marriage/
A biblical definition of love.

Matthew 22:38-40, Romans 8:38-39, 1 Corinthians 13:1-3, 1 Corinthians 13:6-7, 1 Corinthians 13:8, 1 Corinthians 13:13, Ephesians 3:17-19, 1 John 4:8 and 1 John 4:16