itsnotmymind | Brief Wire S3 Thought

I don’t think McNulty walked out on D'Agostino just because he realized she was using him for information, but because she was so obvious about it. The implication was that she thought he was too stupid to put two and two together. If she’d been more subtle, I could almost see him continuing the relationship for the challenge. But she insulted his intelligence, and he walked away.