Of course they will!
The agent may expect a commitment from you before investing the energy, resources and money to find real estate that no one else knows about.
The agent may expect an exhibition of loyalty from you, since you have a friend who is an agent.
The agent may expect you to disclose EXACTLY what you will buy to assess if this has any relationship with reality. "Every house......way over priced" suggests a disconnect. In three to six months 'way over priced' will mean you are out of the market.
If you are a serious buyer, contact a real agent who is actually doing business in today's market and see if you meet their "First Look Buyer" criteria. Be aware, an agent who is able to create the condition for your success will not be infinitely patient. If they find a secret home ready for purchase but not yet for sale that meets your criteria, and you don't buy, two times, you will likely be back on Trulia seeking another agents help.