Recently my husband (1K) and I (silver) flew from IAD to IAH. We used a regional upgrade to fly business. The flight attendant asked me for my food choice before taking off but she did not ask my husband, I thought that was really odd and could not figure out why. Later in the flight she came and asked my husband, at that point he could not get his first choice for dinner. That was when I realized I was sitting on his seat and he was sitting on mine!