awww, poor Roxy, and poor you too!! If you husband is willing, you need to be Roxy's sole source of food, care and as much as possible - attention.
You need to do all the feeding, treat giving, walking, socializing for several weeks. Once she starts to see you as the one through which all good things come, she'll start to look for you too. He needs to not take her places and when he's at home with her to curtail his extra interaction with her. I know he'll have to do some things as you can't totally ignore them, but you really need to be the main care giver until her bond with him loosens.
I'm sure you'll get other advice/ideas, try them all until you find the one that works best for ya'll. Good Luck!
