This is a beautiful song written by George, about Patti Boyd who latter became his wife.  Patti met George during the filming of "A Hard Days Night, and was engaged at the time.One of the cool things George said to Patti when they first met  was "Will you marry me, and if you won't marry me, will you have dinner with me tonight?" George asked her out for a date however she refused. Several days passed and she again met George on the set..and..again he asked her out. This time she accepted, and eventually they married.