Why does Stella stay with Stanley and choose not to believe Blanche regarding his attack?

Stella stays with Stanley because she is deeply in love with him and feels a strong emotional and physical connection that she believes outweighs his flaws. She is also drawn to the stability and raw vitality he brings to her life, contrasting with Blanche's more fragile and pretentious demeanor. Additionally, Stella's denial about Stanley's violent nature allows her to maintain her domestic life and avoid confronting uncomfortable truths about her marriage and family dynamics. Ultimately, her choice reflects a complex blend of love, dependency, and a desire for normalcy amidst chaos.