I'm in agreement with Matchy. The timing is unfortunate for your Wife's plans.
You've done exactly as has been directed: you had symptoms, & therefore, went for a test. You & your household are supposed to not go out while anyone in your household is infectious. This latest strain, Omicron, is highly infectious, even though it more often causes people to feel very sick.
Staying home keeps more people from being infected.
Perhaps if you & your Wife review the info, & what people are being asked to do, at your state's website, then maybe that will help you through the argument? I don't know.
Perhaps she is more upset about not being able to meet up with friends? How long has it been since she met up with them? I can see her perspective, if it has been a very long time, & these are very close friends.
& bearing in mind how very stressful these last two years have been for everyone. & it ain't over yet.
My thought is that any pretence or denial of the reality of COVID-19 is at the very least, not helpful, & at worst, potentially devastating for those nearest & dearest, or to the most vulnerable people in the community.