Most helmets have different shapes for the shape of your head (round, oval) so your helmet may be a round one and your wife's head is oval. I discovered this problem with my helmet so a temporary fix was a vise grip for wood and I squeezed the front of the helmet center and off to each side overnight and it helped. Lid picker has a website and can correctly match a helmet to your head, I have used them and will be buying a new helmet this winter. Can you not exchange for another helmet?
You lips move but I can't hear what your saying
2014 GL1800 Audio Comfort Candy Red
2011 Vulcan Vaquero sold
2009 Vulcan 900LT sold