Romantic love allows you to focus mating energy. Attachment sustains that relationship as long as necessary to raise your baby.
I think romantic love evolved to enable you to focus your mating energy on just one individual at a time, thereby conserving mating time and energy.
Any kind of novelty or excitement drives up dopamine in the brain, and dopamine is associated with romantic love.
The reason you take antidepressants is to feel calm. And romantic love is not calm -it's elation, it's mood swings, and you're killing all that when you take the drug.
Romantic love is an addiction.
Anthropologists have found evidence of romantic love in 170 societies. They've never found a society that did not have it.
