Get the mic close, disable auto mic level in zoom, and set the gain on the mic to be loud enough only while youre speaking.
[https://www.sweetwater.com/store/detail/MV7K--shure-mv7-usb-...]
It's a bit better than my AT2020. But I find that in order to get my Gain down low enough so that my partner isn't too distracting, I have to be right on the Mic.
Which isn't a very attractive look over video....
The pickup pattern is going to be mostly right in front of the mic, with the best rejection from the rear. Keep in mind the mic will also pick up reflections if there is a wall close behind you.
So ideally you’d sit in front of the mic with no wall or a wall at an oblique angle behind you, and your wife across the room directly behind the mic.
Turns out we're moving to a new home, so I anticipate this issue will get solved with walls and doors in the future.