Elizabeth Lail who played adult Lea in Unintended now stars as Guinevere Beck in Netflix series YOU.

From The New York Times:

What Made the TV Show ‘You’ a Hit? Netflix

“The show drew virtually no audience when it premiered on Lifetime in September. Now that it’s streaming, it’s a different story.”

https://www.nytimes.com/2019/01/21/business/media/netflix-you-ratings.html