OK, basic rule of real estate...
Agents must present all offers.
Dennis, if you instructed your Buyers Agent to write an offer regardless of any other offers on the table accepted or not, you agent is obligated to do as you instruct.
If they refuse to do so, then you are abandoned and I would seek another realtor.
Although you have nothing signed, an agency relationship may exist between you and this Buyers Agent which would arise in the form of "Implied Agency".
The issue may arise later with "Procuring Cause" if you get an offer accepted on this property and the agent had shown you the property, but that would likely be solved independently between brokers or it may escalate to Mediation/Arbitration where a commission is involved. You may be asked to participate.
We can not know all of the circumstances that may have arisen out of this action as you describe it so any opinion given here is simply speculative.
Hope this help,
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Keller Williams - Scottsdale, AZ
2008-2009 Master of Real Estate award recipient
ABR, GRI, ePro, CNE, MRE, AHWD