The quote marks a turning point in a relationship's demise. "Congratulations" carries a sense of irony, suggesting that the speaker's departure is a choice to be celebrated. "You lost me" signifies that the other person's actions or attitudes led to the breakdown, implying the speaker's worth wasn't recognized.
The quote encapsulates the speaker's assertion of self-worth. By using "lost me," they assert their value and agency, implying that the relationship's end is a result of the other person's actions, highlighting the cost of underappreciation or mistreatment.
In essence, the quote reflects on personal empowerment and setting boundaries. It communicates the idea that ending a relationship is a declaration of self-respect and a refusal to tolerate neglect or harm, encapsulating the speaker's decision to prioritize their well-being.