Listen to your wife. Her needs are different.
Yes, and finding a good fit for your wife means she has to find the gun that is right for her. It is like undergarments. You can't just randomly buy her a bra or underwear that looks good at the store and expert her to be happy with them anymore than you can do it with a firearm.
Given stereotypical sexual dimorphism - that generally men are physically stronger and bigger than women - I always have found it odd that men want to arm women with tiny guns, often called "ladies guns" and often said women are not skilled in shooting. Many of these so-called "ladies guns" are really much better in the hands of stronger people, more skilled people if they are to be used effectively because of the difficulties in handling lightweight and fire-ergonomically poor guns.
If part of the goal of a firearm for women is to overcome the disparity of force posed by sexual dimorphism (as most attackers are traditionally male), then logic would indicate that a more powerful handgun would be in line for women than less powerful.
I realize that there are all sorts of reasons that folks have tended NOT to try to arm women with more powerful guns, one of those being the women themselves who often express shock and dismay in holding up a whole 2 lbs of firearm as if it weighed 50...but yet heft a 8-25 lb kid all day long without such complaint.
Part is that men want to match some sort of gun size with sex when trying to obtain guns for their female significant others. Apparently, the smaller sex gets the smaller gun, like arming a child...only kids aren't allowed to conceal carry for self defense.
Personally, I think there is some deep down fear that SOME men have about arming women with comparable or better firepower. I think there are some women too who don't want to be seen in a primary protector light either. We don't follow either of these concepts in our household where my wife is my proverbial battle buddy and carries a 1911 .45 acp and her preferred HD weapon is a REM 870 12 ga.
Of course, my wife has taken the time to learn to shoot, practices, and remains proficient with her firearms...