Andreas Lubitz feared deteriorating and would cost him pilot 's licence . He also experienced breakdown in relationship with long - term relationships . they believe together they triggered ' madness ' that ended in crash . He planned to marry Kathrin , but became increasingly controlling . Lubitz wanted to tell her what to do and what men she could speak to . The couple broke - up just weeks ago and she was looking to leave their flat .
Andreas Lubitz feared deteriorating vision would cost him pilot 's licence . He also experienced breakdown in relationship with long-term girlfriend . Investigators believe together they triggered 'madness ' that ended in crash . He planned to marry Kathrin Goldbach but became increasingly controlling . Lubitz tried to tell her what to wear and what men she could speak to . The couple broke-up just weeks ago and she was looking to leave their flat .