Redpill time
Fear is pain from a future evil. The beta fears her mood, not death. He trembles at a text message because his spine has been replaced with cartilage. Psychologically, he worships the beast that eats him; he seeks validation from the source of his pain.
This is Slave Morality. He thinks "being nice" is virtue. It is just weakness disguised as kindness. The moral sin? He trades his will to power for a smile. He bows so she can step on him, thinking it's a handshake.
Justice is each part doing its job. The beta is out of place.. acts like the ruler but lives like the ruled. He owes her truth, but gives her comfort. That is ethical decay.
The beta trades testosterone for approval. A bad trade. He is a slave to his own desires. He wants to be liked more than he wants to be respected.
Ultimately, the soyboy isn't just weak; he is castrated by choice.
Genesis 3:6. Adam ate the fruit willingly. The beta eats the soy-milk willingly. His soul is hollowed out by estrogen and a desire to be "safe." He is a ghost haunting his own life, waiting for her permission to exist.
He isn't a man; he is a breeding stock accessory.