I dislike the idea of being in a relationship or labeling any connection as such. Labeling a relationship as anything romantic just makes me antsy. I feel like it's confining and sometimes downright stifling.
As a person who ranges from "raging nympho" to "sex is boring" person -- sex isn't the most important thing. It can be fun, and with people with the same kinks it can spark some flicker of entertainment. But it won't be the key to happiness. Like Aussie said - be happy with what you do have...