Are you saying that you have nothing else to offer outside of big-R type of stuff?

Some of my most amazing relationships in my life are people who are "just" (and I use that term very lightly) friends. These are people who there is no official commitments - but people who we are simply there for each other because we care about each other. We enjoy each other's company, enjoy good times together, share our joys and frustrations with, are there to help cushion the pitfalls of life, and inspire each other to be better people, etc. No commitment is needed, because we're simply doing what we want to be doing. Sure, we can't be there for it all for each other, and there's no expectation of that being necessary - but when we are, it's appreciated.

And this is there without expectation of building "more" (ie. romantic relationship / sex / partnership / etc). In fact, when there are non-mutual expectations for more, it really makes things awkward and icky.