Why is enkidu punished

After Gilgamesh catches the eye of Ishtar, she tells him to become her lover, promising great riches and rewards in return. Gilgamesh rejects Ishtar, telling her he is aware of her reputation as a scornful lover.

Ishtar is outraged and convinces her father, Anu, to release the Bull of Heaven to punish Gilgamesh. The Bull of Heaven descends on Uruk, killing hundreds of men. Enkidu seizes the animal and Gilgamesh kills it with a sword. Ishtar appears and threatens the heroes. Enkidu tears off one of the Bull's haunches and throws it at Ishtar. Later that night, Enkidu has a dream that the gods are meeting in council.

The dream proves true. The gods decide that one of the heroes must die for their behavior. They choose Enkidu. Enkidu falls ill and suffers for twelve days before finally dying.