Zeus constantly had affairs with many mortal women, occasionally nymphs. Hera, his jealous wife would often strike out against the women and make them suffer, since she couldn't really do any harm to Zeus. One example was Zeus and Leto. When Hera found out Leto was pregnant after having an affair with Zeus she cursed Leto to be unable to actually give birth on the island that she stayed. Zeus, pitied her, changed Leto into a bird who flew to one of the other islands and gave birth to Artemis and Apollo with hatched from eggs.
Yes, Demeter and Zeus were lovers. They produced a daughter Persephone.
Zeus had scores of lovers.
they are lovers
Demeter's immortal lovers were Poseidon & Zeus, her mortal lovers were Jasion, Karmanorand Mekon.
Hera defeated zeus lovers and she was mad of zeus
Hera was his wife but Zeus had many lovers.
There are too many to name.
because he was a player
Possibly her jealousy. She was very jealous of Zeus' lovers and of his offspring from these lovers.
Zeus and Demeter were not lovers. Demeter bore a daughter by Zeus named Persephone (Kore), however Zeus married his other sister, Hera. (Note that Zeus mated with many other goddesses and mortals, not just his lover and Demeter)
she defeated many of Zeus's lovers
Demeter's immortal lovers were Poseidon & Zeus, her mortal lovers were Jasion, Karmanor and Mekon.