Next on the list was Phoenix, which measured up similarly to San Diego. Number 8 on the list was Los Angeles, which hosts a whopping 33 dating services. Marriages last about 18 years, and people are relatively healthy and have a low rate of gonorrhea, despite many reality shows like The Bachelor being filmed there. Dallas, number seven on the list, has some of the shortest marriages at 17 years, and it is home to 13 dating services. It clocks in with a whopping 120 cases of gonorrhea per 100,000 people. Baltimore and Houston are the next two on the list, respectively, and they both fall somewhere in the lower average well-being rank. It seems gonorrhea is more popular than dating services in these cities. Riverside, Calif., landed on the list next due to its unhappy residents, and New York came in at number three – lots of dating services and unhappy people in the Big Apple. Miami ranked number two for its plethora of dating services and unhappy people, too. Chicago took the top spot due to its skyrocketing VD problem (150 people per 100,000) and its unhappy people. So now you know where not to go if you don't want your heart broken.