I am a sub. I live with my Master, and we plan on getting married when we get around to it.

I don't think that on a macro scale, a BDSM relationship is "better" than a vanilla one. It all depends on who you are.

If you are vanilla, and BDSM has no interest to you, than a relationship with a vanilla person could be both fantastic and fulfilling.

But if kink is your thing, I suspect that the best relationship would be with someone who shares that with you.

It is no different than finding a life partner that shares the same values, morals and interests as you. It is all a matter of being with someone who is compatible.

In my observations, it is those who have that deep-rooted compatibility that are happiest, and those that do not that have troubles.