Jenna's condition improved in a fairly short period of time. And as he had asked before, that he was eager to return home, having recovered. Therefore, although there is still much for Blake to do with regards to his business, he put aside and asked the employee to take care of the rest, while he went home with Jenna.
For Jenna, returning home is the best thing. Especially in an uncertain health condition. Being in another part of the country when in an unstable state made him think a lot of things.
Don't forget about other issues, for example about Ryan being increasingly crazy. It made his mental state affected.
This time, at least she feels safe, because she is already Blake's wife, which means that she no longer needs to think about how to run or seek protection from Ryan. He just hopes that the man will come to his senses and stop doing crazy things.
