I am sorry to hear you are having problems with your short sale! Short sales can be difficult even without issues such as yours. Try and hang in there, though.
Sounds like there is a personality conflict between the 2 parties that is interfering. My suggestion is for you to talk to your Agent and find out what the issue is. If it can't be resolved, the Broker should get involved. The Agent conducts business on behalf of the Broker, so actually it is between the 2 Brokers. maybe they can take that part out of the equation and the sale can progress.
A word of warning...short sales can take 6 months and over. The Listing Agent may not HAVE any information to give even if they liked each other. The quality a short sale will teach you is patience, so if this home is "it" for you then hang on and try what I suggested above. If not, have your Agent keep looking for other homes to show you.
Best wishes in your purchase.
Cindi Wolf, CMS, GRI
Realty Executives Platinum
CA LIc #01437139