I returned it and got a great deal on a new last years model for right at $1000. VERY happy with it!
Good for you. Not that the Roubaix was not a good bike because it is, but I think in the long run you will feel better about your purchase. As I said, if things change for you and you either have to stop riding or find out it is not up your alley, then you won't feel too bad about what you spent.
But, and this is a big but, don't quite riding! Keep it up. My co-worker who is a woman started out and took to it as she saw the weight come down. Two years into it and she is about to attempt a metric century. So, keep it going if you can. During the winter, find a spin class and go to it. At least you will keep your legs moving and you won't feel too guilty at eating a couple of Christmas cookies.
Main thing is to develop a routine and stick to it. Good Luck.
john