Fish

  The old fisherman always said that Fishes in his accustomed area will always win over the exotic fishes.

Why, You ask? He broods, and says that the newer tastes are indeed unique, flabbergasting and delightful to the palette. But, after months of foreign fish, one naturally longs for the taste of home. He acknowledges that the yearning of the fish of his youth had never left him. 

坦白说

A male thinks with 3 parts

Logos

Analyzes and is satisfied with the matches it deems fit for the body's best interests, maximizing living utilities and ensuring a content survival partner that is compatible to a standard of living suited to the person.

Phileo

Sees romantic possibilities that satisfies and fills the heart. Flutters and emotional urges are present. Strong consistency of an urge to protect and provide the goddess, being the masculine type" wishing endless and fulfilling friendship and communion that wont break. 

Eros

Purely physically arousing and linked with propagation, each fantasy can be assigned to different kinks that emerge from varying traits of the object. Wild and often rash, reeking of the flesh and bubbling with dependency the higher the desire that has come to boil. 

Now, connecting to science and gene suggestion:

Hormones and genetical triggers to give rose tinted glasses to the seer.

Views "beauty" as requirements to check off before transferring genes to a competent vessel. 

She reels him in like a fish with bait,  thinking that the fish doesn't know her traps.

The fish escapes again and again, but is still dissatisfied with the morsels of bait, and craves for more.

 Eventually, the fish is hooked up, and, realized its mortal mistake too late---

 as it gasped for air. 

It's misery ended

 on the grilling bar.