I thought this was a thread on Haddaway! lol
there are several variations and methods to explain love:
Impersonal love: This variation of love is that of a material object, ideal, thought or living thing other than another human. This type of love can be seen as a deep commitment to the object or abstract idea/principle. Love of pets, country and NB can be seen as impersonal.
Interpersonal love: This variation has to do with the total and utter infatuation of one human to another. The love is not reciprocal nor is it necessarily conditional. This type of love is seen between family members, close friends and especially couples.
Medical view on love
Chemical love: The medical society views love as a chemical and psychological reaction to the natural mammalian drive innate to every human being, (excluding mentally ill peoples). Love is essentially a cocktail of hormones and chemicals that urge the person to commit acts of sexual intercourse with the partner. This is a description of lust in action in a persons brain. Some example chemicals and hormones that are released by the body: testosterone, estrogen, pheromones, dopamine, norepinephrine, and serotonin. Each one has a specific role in the primary stages of love.
This type of love is seen as the stage where a person is "love-struck" and cannot take their mind off the individual. This stage lasts from 1 to 5 months depending on a number of factors including exposure to the person, cultural background and genetics. After this stage, if the couple does not make each other a part of their lives, breakups tend to happen. That is why psychological bonding is important for long-term relationships.
Psychological love: Psychological love is crucial for the bonding that couples experience to ensure long lasting relationships. This love is made up of three building blocks: intimacy, commitment, and passion. Intimacy is a form in which two people share confidences and various details of their personal lives, and is usually shown in friendships and romantic love affairs. Commitment, on the other hand, is the expectation that the relationship is permanent. The last and most common form of love is sexual attraction and passion. Passionate love is shown in infatuation as well as romantic love. All forms of love are viewed as varying combinations of these three components.
Since love is a fluid and abstract subject that most everyone experience, it is usually frowned upon when scientists quantify the relationships that so many people have built their entire lives upon as just a series of chemical and natural reactions hard-wired in each of us.
Most people (I don't have a statistic on it) believe strongly in the religious or philosophical view on love. This view has so many interpretations and forms that it would be impossible to list here. This mystical view on love is more romantic and mysterious, the drive to be involved more with a persons partner drives them to find out everything there is to know about their partner. Since love is seen as mysterious this drive is reinforced through the philosophical view.
In my personal belief, Love is the total commitment to another person with absolutely no conditions. it is too wide a subject to discuss, but I hope I was of some help to anyone reading.
(I wrote a collegiate paper on love and its relation to neurobiology last year and most information taken from there as well as some citations from current online sources)