Freud offered cocaine to his friend in hopes of weaning him from morphine -According to Freud's biographer Ernst Jones, Fleischl clutched at cocaine “like a drowning man.” Within a short time Fleischl was addicted to cocaine, consuming enormous doses of it, and was in a state of chronic intoxication. DeliriuM [ensued]  

We have wonderful courting letters before marriage. After marriage we only get laundry letters. It's all practical. We don't have a single love letter after marriage.