My wife had a trike from 1996 - 2004. I was still on two wheels. In 2021, I converted my new bike to a trike - love it and never looked back.
Curious, what part of your not getting use to it are you referring? Still having said that - if it is not something you want, perhaps giving it to your wife and upgrading her's might be the way to go.
Curious, what year is her trike? I always seem to give my wife the better of our vehicles.