but I think we achieve happiness when we find a way to ensure our happiness independent of our R's, with the R being the foundation.

In the context you wrote, you mean "without" the relationship being the foundation, correct? Which is the way it should be, as relationships are better as an addendum to one's life, rather then its foundation. Lots of folks seek relationships first in their life plans (I'll meet mr./ms. right, from which then we'll...), but of course the problem is when it turns out that the feet you're standing on belong to someone else.