You're a good husband, OP. There are many threads on aborted landings on FT and much info in cyberspace, so maybe if your wife sees how common they are she will be more reassured.

I'm not a frequent flyer (about 10 segments a year), but I've had an aborted landing on Emirates in India. Talk about uneasy feeling. (I admit, I have more faith in American pilots and airport facilities.) Then the screen indicating destination changed from Bangalore to Chennai, so it was a double whammy. Luckily that was a mistake and we still landed in Bangalore (my connecting airport, not even final destination).