South Dakotans tend to be very happy with their relationships, while Rhode Islanders are less satisfied.
Gallup and Healthways used a variety of measures of well-being in their just published 2014 well-being index. Among them was social well-being, which they defined as "having supportive relationships and love in your life."
States with high social well-being scores are scattered around the country, but the core of the Midwest comes in at the bottom of the ranking:
Here are the top ten and bottom ten states in the social well-being ranking: