Typically this is between you and the lender and not between you and the Realtor. Did you ever fill out a loan application with the lender? Did you ever get a good faith estimate from them? Were you able to close the loan only at a higher interest rate or were you not able to close the loan at all?
Well the Realtor has a fiduciary responsibility to you! So you would have to give him written permissions to disclose such personal information. Code of Ethics and Standards of Practice article 1 - 9
Jeffery B Griffin