Mathematics can be used in many ways, one of the more creative being to show that your odds for having a successful relationship increase if you get with at least 12 people!
While some of my friends might continue to be fixated (and not without cause) on finding that one right person and settling down to the happily-ever-after life, it would seem that such an approach is not necessarily as effective overall.
There are many relationship models. I’m currently playing with a 3-factor model, based around the labels of Mind, Body and Spirit, within the context that I give the shorthand of Love.
Parties need to share attitudes, interests and a framework through which greater appreciation can be developed. Attitudes should not be identical, lest one party be redundant; nor should interests, lest they lose their sense of identity; though closer frameworks of discussion can prove valuable.
Couples should be physically attracted, and have shared lifestyle and activities. Physical attraction is an essential component for a great relationship; shared lifestyle and activities give both the context to relate and share life experiences, and indicate shared values and interests. Shared lifestyle would include geography and living conditions; Shared activities would include travelling and typical time priorities.
Currently, I would identify three elements to spiritual connection: Life purpose, Spirituality and religion, and Connection. A shared sense of life purpose gives couples a powerful bond of understanding and conduct, and includes not just our seldom known external goals and objectives, but also compatibility between our view on the nature of life itself. Spirituality focuses more on more practical implementations of that world view, such as religious affiliations and practices. Connection refers to a deep sense of understanding and appreciation for the other person, a state of being where some individuals sense how another is thinking or feeling in a given moment, and perhaps where two people feel that they have been guided to be together.
Love is the framework within which great relationships is possible. This includes concepts like a shared vision for the future, growth-motivated individuals who are letting go of their past, motivated to support and nurture each other, and giving unconditional love.
Thank you, Lyma, for your inspiration.