Here's how it plays out in the poem:
* Pride: Barbara Allan is initially proud and refuses to acknowledge Sir John Graeme's love for her. This pride ultimately leads to her regret and remorse.
* Unrequited Love: Sir John Graeme loves Barbara Allan deeply, but she rejects him. This unrequited love leads to his death, further highlighting the destructive nature of her pride.
* Regret and Remorse: After Sir John Graeme dies, Barbara Allan experiences intense remorse for her actions. She regrets her pride and realizes the true extent of her love for him. Her repentance is ultimately too late, as he is already dead.
The poem explores the emotional turmoil caused by pride, unrequited love, and the devastating consequences that can result from these emotions. It serves as a cautionary tale about the importance of humility and the destructive power of holding onto pride.