From what it sounds like, you should let her get her lawyer to sue you. Then you can sue the lawyer and her for violating the discharge injunction.
I'd speak to a local attorney because obvsiously I don't have all the facts and the attorney will be able to probe into your affairs.
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If she does sue over the loan your husband probably just needs to present the original bankruptcy order. You may also try to consult with counsel now and see what they think is the most beneficial action given local law, this will also help so that if you do ever need a lawyer once the suit is filed you know who you will call.
These statements do not constitute legal advice. They are meant to be general in nature, for any specific legal questions you should always seek the counsel of an experienced attorney.