What distinguishes a fling that ends in tears from long-term love? Past research suggests that the most successful couples share common interests, values and personality traits. Now new research published in Psychological Science proposes that the simplest words lovebirds use to speak to each other also make a difference–both in determining how attracted they are and how likely they are to stay together
See the article here:
The Language of Love: Word Usage Predicts Romantic Attraction