Feel better soon?

A week or so ago I was on the phone with a work related call, and my office mate gave me a folder with a card in it to sign. I smiled at her and she left it on my desk. When I got off the phone to sign it, I realized I didn't know who it was for, but it was a get well card. She had already signed it and the person's name (beginning with a K) was not someone whose name I recognized). My office mate was away from her desk then, and I knew I had to go somewhere soon, so I just signed it, "feel better! sincerely, Andrea" and put it back on her desk. Later she came back and asked if I still had the card; I know I should have just asked her who it was for then, but I just told her I put it on her desk, and then I heard her open it and go, "oh...okaaaay." And then off to deliver it to someone else.