 According to actress Nancy Olson (qv), who was married to lyricist  Alan Jay Lerner (qv) at the time he was writing the musical,  Lerner and Frederick Loewe (qv) had the most trouble writing the  final song for Henry Higgins. The two writers had based the whole  concept of the musical around the notion that Higgins was far too  intellectual a character to emotionally sing outright, but should  speak his songs on pitch, more as an expression of ideas. However,  both composer and lyricist knew that Higgins would need a love song  towards the end of the story when Eliza has abandoned him. This  presented an obvious problem: how to write an emotional song for an  emotionless character. Lerner suffered bouts of insomnia trying to  write the lyrics. One night, Olson claims, she brought him a cup of  tea to soothe his nerves. As she entered his study, Lerner thanked  her and said "I guess Ive grown accustomed to you...Ive grown  accustomed to your face." According to Olson, his eyes suddenly lit  up, and she sat down and watched him write the entire song in one  sitting, based on the idea that although Higgins couldnt "love"  Eliza in the traditional sense, he would surely notice the value she  represented as part of his life.