You should feel guilty, you not only screwed your Realtor, you screwed yourself.
First, the listing agent is working for the SELLER of the home you bought, and unless you signed a buyer's agency agreement where the listing agent disclosed to be YOUR dual agent...ANYTHING AND EVERYTHING you tell the listing agent, she MUST communicate to the seller...and can use that information to negotiate a better deal for the SELLER.
Second, if you signed a buyer-agency agreement with the FIRST Realtor....she can now sue you for the commission...b/c that is a contract.
Third, Did the listing agent state that she was giving you a 3% discount on the property you bought because you didn't have a Realtor of your OWN? Of course she didn't....b/c she is going to POCKET THE FULL 6% COMMISSION by selling her own listing.
Fourth, Now you have no one working FOR YOU when you have an inspection, appraisal, apply for a loan, go to the closing with you to make sure things were right for YOU...and guess what the best part is? YOU PAID THE SAME PRICE!!!!!! Isn't that great? Paying for a service you aren't getting?????
Do you know if you paid a fair price? Did shepull comparables to help you offer the LOWEST price possible for the property? Do you know how long the sellers had the property and what they paid for it? Did you know how much negotiating room there was? Did someone run a check for you to see if building permits have been pulled in the last 5 years that would indicate a major repair? Did she check zoning around surrounding areas to see if it was going to stay the same so not to adversely affect your property value later? Is this listing agent going to recommend you an inspector....that is probalby someone that SHE works with all the time....and who is certain to provide a glowing report in HER favor? Is SHE going to find you a home warranty company...that will be the cheapest on the planet for HER seller...and probably won't pay if you have a claim anyway?
These are all the things YOUR Realtor would have done for you...but the listing agent who represents the SELLER...doesn't have to...again, EVEN THOUGH YOU PAID A FULL 6% COMMISSION.
Fifth...AND HERE IS THE BEST PART!!!!! Do you realize now how UNETHICAL of a listing agent you are working with??? The FIRST QUESTION she should have asked you is if you were already working with someone....and if you told her the truth, she should have told you that you needed to see the home through YOUR agent....if she didn't, and showed you the house directly....then she will throw you under the bus any day of the week...because that is an UNETHICAL business practice.
YES, THE FIRST REALTOR YOU WORKED WITH would have been paid if you had given her the opportunity to work for YOU. THE SELLER PAYS HER!!!!!!!!!!
All you did is allow for the listing agent to get 6% commission instead of BEING REQUIRED to split it with your agent....not only did you pay the same, but you get NONE of the representation, NO ONE working for you.