The first of these half-mortal siblings to reveal himself to Wonder Woman was her older half-brother, Lennox Sandsmark, who could transform himself into living, marble-like stone and, before his death, was revealed to be the father of Wonder Girl (Cassie Sandsmark). His killer, the First Born, the eldest progeny of Zeus, would become Wonder Woman's first major super-villain of the New 52.
Not even girls want to be girls so long as our feminine archetype lacks force, strength, and power. Not wanting to be girls, they don't want to be tender, submissive, peace-loving as good women are. Women's strong qualities have become despised because of their weakness. The obvious remedy is to create a feminine character with all the strength of Superman plus all the allure of a good and beautiful woman.
As Zola defeated Poseidon, the First Born returned to Olympus and ordered the Minotaur to attack Wonder Woman. The Minotaur, however, refused to kill her and the First Born killed him instead. Upon seeing the unmasked Minotaur, Diana discovered her foe was the creature she had spared in the labyrinth. Wonder Woman furiously threw the First Born into the abyss he was originally trapped in while Zola placed Zeke on the throne. Zola revealed herself to be Athena and Zeke to be another iteration of Zeus himself. Both had planned for Wonder Woman to fight the First Born and accept her destiny as a goddess. With the conflict ended, Athena planned to put an end to her human identity and become a goddess once more, but Wonder Woman convinced her to allow Zola and Zeke to live without godly interference.
Immortality: Wonder Woman, due to being an Amazon, has lived for millennia without visibly aging, with her being roughly 5000 years old (having been born right after the War of the Gods), and having been present in the "Man's World" since World War I. She is thus the oldest member of the Justice League by far (though still roughly a millenia younger than Enchantress, and even more so than Ares and Steppenwolf), making her an ageless immortal, much like Superman.
Wonder Woman was legally barred from appearing in the first few seasons of the Batman: The Brave and the Bold, but made a cameo from behind in the episode "Sidekicks Assemble!" She later made a full appearance in the final season during the episode "Scorn of the Star Sapphire!," and played a main role in the episode "Triumvirate of Terror!" In the show, she was voiced by Vicki Lewis.
Although she has traditionally paired with either Steve Trevor or no one as a main romantic lead, and Superman with either Lois Lane or Lana Lang, there has often been the hint of a romance between the two characters. This began in the 1960 in the series Superman's Girlfriend, Lois Lane which was equal parts romance and action themed. In order to drive along the romance, the theme often came up of Lois Lane believing that Superman really loved Wonder Woman (though this was mostly for the purposes of a case.) In later years the same ideas perpetuated though most in imaginary stories or alternate tellings of the future. Following Crisis on Infinite Earths the characters were briefly linked romantically in Action Comics #600 which was written by John Byrne. Subsequently the characters' interest in one another was generally portrayed as a strong friendship (this occurred under different writers, primarily Messner-Loebs and Rucka.) Following the reboot of the DC universe into the new 52 the characters once again showed a romantic interest in one another. They found common ground in the isolation which their power give them and shared a kiss in Justice League #12 in 2012. It was later on revealed by Geoff Johns that their relationship wouldn't last for long and will end badly.
While not completely invulnerable, she is highly resistant to great amounts of concussive force and extreme temperatures and matches Superman in this regard. She is completely immune to his heat vision, virtually any damage, or even the core of the sun. However, edged weapons or projectiles applied with sufficient force are able to pierce her skin. Due to her divine origins, Diana can resist many forms of magical manipulation.
Unfortunately, not long after Diana left, Hera came for her vengeance, and though she could not bring herself to kill Hippolyta, she could not forgive her either. Feeling regret at giving up the only real family she had, Wonder Woman returned to Themyscira to find the Amazons absent, and her mother turned to stone. Shortly after, Wonder Woman encountered Lennox, a man who claimed to be another of Zeus' bastard children. After learning that Zeus has gone missing, they confronted the Gods of Olympus, Poseidon and Hades, in order to prevent them from taking over Zeus’ throne. To prevent a war between gods, Diana proposed that the two brothers share Heaven with one ruling during the day, and the other at night. Hera angrily interceded, which was what Diana had planned, and using Hermes' staff she transported herself to Mount Olympus to face Hera alone. She warned that she would make Hera regret what she had done to her mother before returning to Earth. Unfortunately, by the time she had returned, Hades had kidnapped Zola with the warning that Diana would need to make good on her bargain or Zola and her child would die.