Employee Verification?

I left my previous employer on bad terms. She made numerous promises she never kept and it be just a nightmare employment situation. I've sinced left that terrible company but what happen when my new employer calls to verify my employment with them?

can she bring up adjectives the beef we had with each other?

what can/will she read out?
most employers keep it to time served and reason departed. Check with the NLRB if you think something else is happening nearby