Answer:
What the characters are doing when they overuse oxymorons is expressing the depths of paradoxical emotions.
Step-by-step explanation:
This excerpt uses many oxymorons to express how conflicted the character is since she loves and hates a person at the same time, it is a way to express into a literary form how hectic can the human emotions be and it also demonstrated the strength of this emotions, they go deep inside of the character's soul.