Answer:
Hermia believes that Helena has stolen Lysander’s heart.
Step-by-step explanation:
In "A Midsummer Night's Dream" we can see how love can destroy a long-standing friendship. That's because Hermia and Helena have been friends since childhood and Hermia loves Lysander who also loves her, while Helena loves Demetrius, but after being bored Lysander starts to agri as if she loves Helena, creating a friction between the two friends, because Hermia starts to think that Helena seduced Lysander, even though she knew of the love that existed between them.