As much as Democrats wanted to win this seat, this result really shouldn't shock anyone. This congressional district has been won by Republicans for the last 30 years, and in the last presidential election the district voted for Romney by an 18 point margin. The district couldn't be any redder.
I think the result should also lay to rest any lingering thoughts about Republicans being "morals and values" voters. The man these Republicans voted into office has been shown to be completely devoid of morals and values. And to make matters worse, he doesn't have much respect for the law either (having repeatedly violated a court order to stay away from his ex-wife's home).