After realizing how mean Britney was to him, Arthur decided to read into the topic of relationships, and realized that there are two types of relationships, healthy relationships and unhealthy relationships.
Arthur soon realized that his relationship with Britney is unhealthy, as she is rude to him, and there is no element of trust in their relationship.
Later that evening, Arthur worked up the courage to talk to Britney about how he felt, and his reasons for breaking things off with her.
I don't think that we should be together anymore, as our relationship isn't benefiting either of us, and is making me feel worse about myself.
Arthur was now free of Britney and the harmful relationship that she put him in, and he was ready to live his life to the fullest.