Research have shown that appearance plays a large role in how people select partners. Status, intelligence, health and other traits that display superiority are also important, and people tend to pair up with who's overall attractiveness is equal to their own (i.e. the best status and genetics in a partner that a person can get with their own value).

In your opinion, (even though the state can feel very powerful for maybe 1-2 years) is romantic love really very "shallow", as in fundamentally based in sexual selection/eugenics?