They call it falling in love because you hit the ground.

His view of her as his trainee drastically shifted on a shared spring day in Serene. Her reliance upon his advice and friendship grew as they sought to save the Continent from the malichor. Their affection for one another flourished amid Teer Fradee's chaos. She relied on his strength and he, her hope, when it was all over and it left so much unknown. Kurt/De Sardet