Yeah man, it's your wife, you don't want to have bad feelings between the two of you over something as silly as this.
Yes, you're going bald but you're doing something to prevent it.
Look. Women get weaves, boob jobs, use diet pills to lose the fat off their big asses, fake contact lenses, etc.
We.... lose our hair. So what. Joking about it with her and with your friends will help you get over it all.....fast!
Remember, she's going to be your wife and he's going to be someone you know, bald or not. Be cool, my brotha, be cool.