Meanwhile, Eve had just given birth to Psyche, the goddess of the soul. 

Zeus' long absence has made Eve feel terribly lonely and cold.

Unlike Eve, Hera feels nothing more for Zeus other than anger and resentment. 
She was Zeus' wife, yet she hated the fact that she had to share him with many other women
and the worst was that Zeus chose a mortal over her.
While she's happy with Hypnos, she still could not help the urge to exact revenge.
She needed Zeus to suffer for his infidelity
and vowed to grab any opportunity where she could hurt him back.

She found out about Zeus' affair with Metis, the Titan-goddess of good counsel

who helped Zeus avoid the punishments from the ancient gods for impregnating a mortal.