Why chocolate always associated with love?

Lot of people love to eat chocolate even kids like to eat it, but Why chocolate always associated with love, Woman and romance?

In fact they are right in that and this is due to

The chemical components of chocolate.

Chocolate contains chemicals that affect the brain what gives a sense of feeling like when we are in love.
why chocolates gives feeling of pleasure and love?
Like we said it is due Chemical reactions(375 chemicals in chocolate):
but the ones that makes chocolate associated with love and pleasure is opioids.
Scientists from the University of Michigan found that chocolate causes the brain to release opioids. Opioids are chemicals that produce a euphoric feeling and are very pleasurable. Drugs like morphine and heroin are opioids but, quite remarkably, our brain makes natural opioids to help control pain. Apparently one of the effects of chocolate on brain is to release natural endorphins so that when we eat chocolate, it dulls pain and gives us a little euphoric feeling.
- Cannabinoids
 three chemicals found in chocolate can stimulate Cannabinoid receptors witch is the same receptors stimulated by the main chemical in Marijuana they do create some pleasurable sensations.