Hera was a jealous wife
While her husband Zeus was the exact opposite, Hera was connected with loyalty. Zeus could not remain faithful to Hera because she never cheated on him. Despite being Hera's husband, Zeus had a lot of adulterous relationships. Before he married Hera, he had had a lot of relationships. Hera was incredibly envious. Zeus's companion would follow him wherever he went and curse the ladies he was involved with. Numerous myths claim that Hera planned these women's deaths or cursed them.
Zeus had countless offspring from a variety of his lovers as a result of his escapades. The twin's Apollo and Artemis were born from Zeus and Leto's most well-known relationship. Hera, in response, cursed Leto and complicated the birthing process by forbidding her from giving birth on a solid piece of ground. The twins were able to exact revenge since Leto gave birth to them.
Lamia, the mistress of Zeus and the queen of Libya, experienced a similar situation. Hera dispatched a monster to kill their children in this instance as well after learning about their romance.