The last post is rather incomplete. If the debts were in the sole name of the husband, the wife is not liable for them - this only applies if the debts are in joint names.
If your girl friend is still living in what was the marital home then it is possible the Official Receiver will question her husband about whether he made any contributions to the costs of the home (paying the mortgage, or for improvements). If he did, it might be argued that he has a beneficial interest in the home which would have to be bought out. Look at the Insolvency Service website - booklet on effects of bankruptcy on houses.
If your girl friend has any valuables which were provided by her husband (an expensive car or jewellery) there is a remote possibility - being vindictive - that he could try and convince the OR that he actually owned them and only allowed her to use them. This would almost certainly not stand up if he did try it, but if the OR was persuaded he might say the valuables had to be sold for the benefit of the creditors.