As a war hound, Crusher needs some level of coherence. She is self-aware while humiliating herself in front of her former allies. She just doesn't care about anyone who isn't a direct friend. She has always walked her own path.
What she wants is the next hit. The heady euphoria and promise of power. As the vanguard, life is a series of brutal life and death struggles against impossible odds. She's learned to enjoy the moment. For Insight, a long term thinker and planner, Crusher's mindset was always deplorable. Secure in the safety as a flight mage, Insight has the luxury of living for tomorrow.