Complex sentence: However, in order to add intrigue, McKee introduced a new direction in the development of Shepherd's character, which dealt with his reluctance at forming a new relationship with Grey: He's shown Meredith that he has things to sort out.
Split into simpler sentences: However, in order to add intrigue, McKee introduced a new direction in the evolution of Shepherd's character, which dealt with his reluctance at forming a new relationship with Grey. On her decision for the storyline advancement, McKee wrote: He's shown Meredith that he has things to sort out.