"No one knows that I love the stars is wrong."

This is a poem expressing loneliness and loss. It means that no one understands my inner pain and anxiety, which leads me to like stars. It may mean the feeling of loneliness and the pursuit of self-identity.

"No one knows my heart" expresses that no one really understands his pain and inner complexity, which may imply that the author feels misunderstood or lonely. "I fell in love with the star by mistake" means that this kind of pain and the pursuit of self-identity lead to the author's love or sustenance for the star.

Generally speaking, this poem expresses a feeling of loneliness and loss, as well as the desire for self-identity and the pursuit of inner truth.