Why wouldn't he leave her alone?

Why wouldn't Ryan Forrester accept the fact that Devan's writing career was over?

She couldn't continue to write about something she didn't understand. It was that simple. Her books were about love - and Devan was a failure at love.

She knew that Ryan was a brilliant editor, sensitive and fair. She didn't know that he was also a tough, hard-driving man, capable of tracking Devan to her secluded hideout in rural Maine -- and staying there until he'd forced her to begin writing