The Difficult Art of Giving Space in Love: Rilke on Freedom, Togetherness, and the Secret to a Good Marriage
While I'm not convinced that it makes sense to focus on the idea of "marriage" in this article -- it seems to approach it as if it's the only sensible and viable long-term form of relationship -- I do like the main thrust of it; the idea that the best relationships are those where each partner can make space for the other(s).