Romantic love is a relative term, that distinguishes moments and situations within interpersonal relationships. There is often, initially, more emphasis on the emotions (especially those of love, intimacy, compassion, appreciation, and general "liking") rather than physical pleasure. But romantic love in the abstract sense of the term, is traditionally referred to as involving a mix of emotional and sexual desire for another as a person. If one thinks of romantic love not as simply erotic freedom and expression, but as a breaking of that expression from a prescribed custom, romantic love is modern. There may have been a tension in primitive societies between marriage and the erotic, but this was mostly expressed in taboos regarding the menstrual cycle and birth.
Before the 18th century, as now, there were many marriages that were not arranged, and arose out of more or less spontaneous relationships. But also after the 18th century, illicit relationships took on a more independent role. In bourgeois marriage, illicitness may have become more formidable and likely to cause tension. In Ladies of the Leisure Class, Bonnie G. Smith depicts courtship and marriage rituals that may be viewed as oppressive to both men and women. She writes "When the young women of the Nord married, they did so without illusions of love and romance. They acted within a framework of concern for the reproduction of bloodlines according to financial, professional, and sometimes political interests." Subsequent sexual revolution has lessened the conflicts arising out of liberalism, but not eliminated them.
Anthropologists such as Claude Levi-Strauss show that there were complex forms of courtship in ancient as well as contemporary primitive societies. But there may not be evidence that members of such societies formed love relationships distinct from their established customs in a way that would parallel modern romance. 28/2/09 Romantic love is then a relative term within any sexual relationship, but not relative when considered in contrast with custom. Within an existing relationship romantic love can be defined as a temporary freeing or optimizing of intimacy, either in a particularly luxurious manner (or the opposite as in the "natural"), or perhaps in greater spirituality, irony, or peril to the relationship. It may seem like a contradiction that romance is opposed to spirituality and yet would be strengthened by it, but the fleeting quality of romance might stand out in greater clarity as a couple explore a higher meaning. The cultural traditions of marriage and betrothal are the most basic customs in conflict with romance, however it is possible that romance and love can exist between the partners within those customs. Shakespeare and Kierkegaard describe similar viewpoints, to the effect that marriage and romance are not harmoniously in tune with each other. In Measure for Measure, for example, "...there has not been, nor is there at this point, any display of affection between Isabella and the Duke, if by affection we mean something concerned with sexual attraction. The two at the end of the play love each other as they love virtue." Isabella, like all women, needs love, and she may reject marriage with the Duke because he seeks to beget an heir with her for her virtues, and she is not happy with the limited kind of love that implies. Shakespeare is arguing that marriage because of its purity can not simply incorporate romance. The extramarital nature of romance is also clarified by John Updike in his novel Gertrude and Claudius, as well as by Hamlet. It is also found in the film Braveheart, or rather in the life of Isabella of France.
Romance can also be tragic in its conflict with society. Tolstoy also focuses on the romantic limitations of marriage, and Anna Karenina prefers death to being married to her fiancée. Furthermore, in the speech about marriage that is given in Kierkegaard's Either/Or, Kierkegaard attempts to show that it is because marriage is lacking in passion fundamentally, that the nature of marriage, unlike romance, is explainable by a man who has experience of neither marriage nor love.
In the following excerpt, from Shakespeare's Romeo and Juliet, Romeo, in saying "all combined, save what thou must combine By holy marriage" implies that it is not marriage with Juliet that he seeks but simply to be joined with her romantically. That "I pray That thou consent to marry us" implies that the marriage means the removal of the social obstacle between the two opposing families, not that marriage is sought by Romeo with Juliet for any other particular reason, as adding to their love or giving it any more meaning.
"Then plainly know my heart's dear love is set On the fair daughter of rich Capulet: As mine on hers, so hers is set on mine; And all combined, save what thou must combine By holy marriage: when and where and how We met, we woo'd and made exchange of vow, I'll tell thee as we pass; but this I pray, That thou consent to marry us to-day." --Romeo and Juliet, Act II, Scene II
Romantic love, however, may also be classified according to two categories, "popular romance" and "divine"(or "spiritual") romance. Popular romance may include but is not limited to the following types: idealistic, normal intense (such as the emotional aspect of "falling in love"), predictable as well as unpredictable, consuming (meaning consuming of time, energy and emotional withdrawals and bids), intense but out of control (such as the aspect of "falling out of love") material and commercial (such as societal gain mentioned in a later section of this article), physical and sexual, and finally grand and demonstrative. Divine (or spiritual) romance may include, but is not limited to these following types: realistic, as well as plausible unrealistic, optimistic as well as pessimistic (depending upon the particular beliefs held by each person within the relationship.), abiding (e.g. the theory that each person had a predetermined stance as an agent of choice; such as "choosing a husband" or "choosing a soul mate."), non-abiding (e.g. the theory that we do not choose our actions, and therefore our romantic love involvement has been drawn from sources outside of ourselves), predictable as well as unpredictable, self control (such as obedience and sacrifice within the context of the relationship) or lack thereof (such as disobedience within the context of the relationship), emotional and personal, soulful (in the theory that the mind, soul, and body, are one connected entity), intimate, and infinite (such as the idea that love itself or the love of a god or God's "unconditional" love is or could be everlasting, if particular beliefs were, in fact, true.)