The song "What She Did" by Hadouken! is about a person who receives a call from their partner's lover in the middle of the night. The lover reveals that the partner had been cheating on the protagonist, but the protagonist already knew about it. The song is about the protagonist's feelings of betrayal and hurt, and their decision to end the relationship. The lyrics talk about how the partner's actions have caused pain and left the protagonist feeling low. The protagonist also feels angry about the lies that were told and the deception that occurred. The song ends with the protagonist realizing that the partner is not the right person for them, and they are better off without them. Overall, "What She Did" is a powerful song about love, betrayal, and moving on. The lyrics are emotional and raw, and many people can relate to the feelings of hurt and disappointment that come with being cheated on.