I suggest that an entire section of topics be dedicated to support topics dealing with people in, or out of, relationships. Here are some of the topics that you could find in that kind of section:
- dating
- dealing with divorce
- enhancing a relationship
- gay, lesbian, bisexual, transgender relationships
- single, and starting all over again
- widows and widowers
- single and unhappy
- adjusting to married life
- enhancing a marriage
- engaged
- single parents
- married again
- troubled relationships
- dealing with breaking up
- parents with children dating
as you can see, there are many possibilities in this area, and I think they would get a lot of traffic. The purpose would be not for people to "hook up" in these forums, but for people in the same situation to come together in support for one another, as they have done in all the other forums.