Here's a breakdown:
* Initial reluctance: Louis is initially horrified by the idea of feeding on humans, finding it a brutal and disgusting act. He struggles with his newly acquired nature and tries to find alternative food sources.
* Initial diet: He initially tries to survive on animal blood, but finds it unsatisfying and ultimately fails to sustain him.
* Acceptance and guilt: Eventually, Louis accepts his need for human blood and begins feeding. He is tormented by his actions and feels immense guilt, as he understands the horror of his actions.
* Preference for specific targets: Louis displays a preference for feeding on victims who are already vulnerable or on the brink of death. He is particularly horrified by the idea of feeding on innocent children or those who are already suffering.
While his primary food source is human blood, Louis's relationship with feeding is complex and reflects his internal conflict between his humanity and his monstrous nature.