Yep, buy a stylish black rifle to go with her new black gun and start practicing your shooting. Because one she gets comfortable with little black gun, she'll be hard to beat. It took years for me to finally break down and buy a Glock, now my 30 is my everyday carry gun, I own a Stag Arms lefty and am starting to get the itch for an Arma-Lite AR-10.
You bought your wife an excellent, uber-reliable firearm and she'll be well defended if ever in need.
Glock...the original point and click interface.