Well, I'm not sure, but I thought Hera is from the Greek mythology and Poseidon is from the Roman mythology.
however, the Romans copied the Greek gods but gave them another name, Poseidon was the new name for Zeus. Zeus was Hera's wife, so I assume she did not hate him.
NO
Poisidon
No, Poseidon did not hate Hera, they were sister and brother.
No, but Hera is jealous of Aphrodite's beauty.
It was because Leto had sex with Hera's husband, Zeus, and had gotten pregnant by him.
People sleeping with her husband Zeus
dont think you do
She hated Aphrodite for flirting with Zeus
Poisidon married Amphitrite, a nymph and ancient sea goddess. But he also had may relationships with many other women to, like Demeter and Medusa
Seriphos.
it enraged her because Zues her husband had Hermes with a woman.
It was mainly Heracles she hated, but she wasn't nice in general so maybe.
There was a rivalry -not 'hate - between Aphrodite, goddess of love, Athena, goddess of wisdom, and Hera, the Queen of the gods; it escalated at the point of the golden apple of Discord.