To fully understand why these entities do not get along, you need to know a little about the history of each one of them, to understand them, and to have a clear idea of the reason that they will never want their children to fall in love with them.
Both the angels, the archangels, the Gods of Olympus, the Nymphs, Demons, Gorgons, Hades, and Lilith, have had between all of them that friction point of hatred and much resentment, that they do not allow themselves to treat each other.
For example, Medusa and her story made her hate Poseidon and Athena with all her might.
The story of Medusa, Poseidon, and Athena is as follows: "Medusa was a beautiful mortal; so that, she came to be named" The jealous aspiration of many suitors."
She was also a priestess in a temple to Athena, the goddess of intelligence and strategy.
Unfortunately, her beauty played an important role on her since Poseidon, the God of the Sea, and natural disasters, found her so irresistible that he decided to rape her in the temple of Athena.
It should be clarified that but Poseidon and Athena, had a rivalry.
Then, Athena besieged that, as an offense, and punished Medusa: she transformed the young woman's beautiful hair into snakes, and every time a man looked her in the eye, he would be petrified of stone.
Medusa was banished to live in the Hyperborean lands.
From that fortuitous encounter that took place between Poseidon and Medusa, a pregnancy arose, which only increased the resentment of Athena, who orders Perseus to kill Medusa.
Thus, this hero, son of Zeus, beheaded Medusa, and her story comes to an end."
And it is for that reason that Medusa, would never allow the same thing, happen to her offspring, and they are prohibited from falling in love with the Gods of Olympus.
Werewolves and vampires could never get along and will have strong encounters.
The story of both clans is as follows: "The vampires, tired of patrolling and hunting only at night, wanted someone to help the vampires, patrol and hunt all day, until night.
One day, the eldest and chief of the vampires came up with the idea to imprison the werewolves and force them to work for them.
The vampires decided to kidnap the werewolves (children) because they are defenseless, and they still did not fully know what they could do and achieve.
Little by little, they managed to kidnap all the werewolves to work for them, and invited humans, to force them to become werewolves.
When they complete the task, the vampires gave them orders that they go to patrol, watch, and hunt all day until the sun hides, and if they did not, they would whip them.
The werewolves, hearing the threats of the vampires, had no choice but to do what they wanted.
Everything was perfect until, Nyssa, fell madly in love with Varkolak, and he loved her the same way. Nyssa was expecting a daughter from Varkolak (Victoria).
On the other hand, Nomak fell madly in love with Angela, and she fell madly in love with Nomak. Angela was expecting a child (James).
When both clans found out this terrible truth, they flogged them, electrocuted them, mutilated them, they did everything to them; so that, they abort and without results.
Satan, seeing that both clans were about to start a war, decided to intervene.
Nyssa could stay with her daughter and told Varkolak to forget about her son until further orders, and he allowed Angela to stay with her son and told Nomak to forget about her son until further orders.
Although what Satan was offering seemed unfair to all four, they accepted his offer. Although inside, they wanted to kidnap them and go far from that toxic world for their children.
"As for each one of you, do not think that, with this, everything is forgotten, because it is not like that. I will be watching you closely and the slightest mistake you make, stick to the consequences", Satan told them, staring at them; so that, they can see and notice how upset he was with each one of them for forcing him to make this kind of decisions.
"Someday, I will have my offspring, and she or he will decide the fate of each one of you, I promise you that."
From that moment, both clans cannot see each other for any reason from being close to each other.
The nymph Daphne and Apollo cannot see each other for any reason, and they hate each other so much that they do not want their offspring to fall in love with each other.
The story of the two is as follows: "Every time, there is a sports competition, or simply looking at ancient representations of winners, there is always something in common: a laurel wreath on the head of the winner.
Greek mythology has an explanation for this fact. Curiously, it has its origin in an unfortunate love story.
Apollo, son of Zeus and Leto, was considered the God of music, poetry, light, and even the divinatory arts.
Throughout her existence, she had numerous romances with both mortals and nymphs, and goddesses.
One day, he dared to laugh at Eros, better known as Cupid, who was practicing, with his bow.
The latter, feeling humiliated by the arrogant God, decided to teach him a lesson.
When Apollo was hunting in the forest, he saw in the distance a beautiful young woman named Daphne, who was a nymph.
Eros decided to seize the moment and shot two arrows. The one that shot Apollo was made of gold, which produced a passionate love.
However, Daphne was shot by a lead arrow, the effect of which was exactly the opposite, to feel hatred and revulsion, towards the god, who had fallen in love with her.
Apollo decided to pursue Daphne wherever she went; until he got her love, but Daphne, under the effects of the lead arrow, fled as best he could from him.
Upon reaching the Peneo River, Daphne, tired of so much flight, and just when Apollo was able to reach her, asked her father for help, who was none other than the river god.
Her father having compassion for his daughter decided to do the only thing that could save her: he turned her into a tree laurel.
When Apollo finally reached her, he saw how the limbs of his beloved became rigid, his arms became branches, his feet took root, and his hair gradually became leaves, until his head became the cup of a beautiful tree.
Affected by what had just happened and thinking about how much he loved her, he promised that she would be his tree, the one that always represented him. In this way, its leaves would adorn his head and that of those warriors, athletes, poets, or singers who triumphed, becoming a symbol of triumph and victory."
Others who have forbidden their children to fall in love with each other are Zeus, Poseidon, and Hades.
The story of the strongest of the Olympian Gods is as follows: "The three brothers, after defeating their father, Cronos, could be calmed, without the constant threat that Cronos would eat them, as he has eaten the rest of his children.
But things got worse when Zeus decided where they were going to rule each of them.
Zeus would rule the sky, and from there, he would see carefully what would happen on Earth, Poseidon let him rule in the sea.
But the same would not happen with Hades, because he was sent to hell to rule Tartarus.
Hades did not like it at all, that the worst part was given to him and the best, they both stayed.
Hades felt displaced by his brothers and therefore declared war on his brothers making them suffer where they hurt most so they feel what he has been feeling for these long centuries.
From that moment, Hades moved away from his two brothers, and has forbidden his children to approach the Gods of Olympus."