When you find yourself in this dual-agency situation, as C.J. suggests, you'll find that your agent has to become almost neutral, and you find yourself floundering a bit, because there are many areas where she would normally be advising you, and because of the conflict, she has to remain almost mute.
I hope that she has had you sign a "dual-agency" representation form, and has explained to you the hazards of entering into dual-agency. If you find yourself truly uncomfortable, your agent should be able to refer you to another agent in her office, to represent you fully. Your agent could still get a nice referral fee from that agent, but at least you would be fully represented.
Good Luck with your purchase.
This is one of the challenges of representing both sides. Owing fiduciary duties to both clients would imply the agent would need to be as neutral as possible as to not tilt favor in the direction of one client or another. If it were me, I would agree that I could not share what the other offers were. That is not something the buyer's agent (assuming there were two agents involved) would know. It can become a catch 22 situation. Good luck.