Love has additional religious or spiritual meaning.

Since the lust and attraction stages are both considered temporary, a third stage is needed to account for long-term relationships.

Attachment is the bonding that promotes relationships lasting for many years and even decades.

These effects rarely last more than a few weeks or months.

Attraction is the more individualized and romantic desire for a specific candidate for mating, which develops out of lust as commitment to an individual mate forms.

Interpersonal love refers to love between human beings.

It is a much more potent sentiment than a simple liking for a person.

Throughout history, philosophy and religion have done the most speculation on the phenomenon of love.

In the 20th century, the science of psychology has written a great deal on the subject.

Unrequited love refers to those feelings of love that are not reciprocated.

Interpersonal love is most closely associated with interpersonal relationships.

vulnerability and care theory of love), including oneself (cf. In addition to cross-cultural differences in understanding love, ideas about love have also changed greatly over time.