Mike and Nicole’s OPP: Was She Testing Me?

Dear Mike and Nicole,

I recently divorced and started dating again. I had a fantastic date last Saturday before the woman I took out asked me if I would like to come back to her house. I froze for a second and didn't know what to say. I thought she was trying to test me. If I said YES then she may have thought I was only interested in a hookup. If I said NO then she may have thought I was rejecting her or being a gentleman. I'm new to the dating scene after 12 years and had no idea how I should have answered that question. I declined and now my date is acting frosty. Was that a test or not? Would you it be awkward if I say something about it to her now?