I'm a wife and I'm over 35 so I guess I'm allowed to be here...
I wanted to comment because I Love to watch my husband lifting in the gym. He even lets me spot him when I go with him. I'm VERY impressed with the amount of weight he lifts.
I also love to watch the amount of effort he puts into it and how it makes him feel. He is always so focused in the gym and I can see it in his face how hard he works.
Yeah it also helps to know that he can do all the heavy lifting around the house...
But, realize that some wives do appreciate a strong guy and they really are impressed when they watch you in the gym.
OP I think your wife might really like going to a PL meet. I know the first one I went to, I was very impressed by those guys and girls at the meet. It takes some serious balls to lift that much weight, especially in front of a bunch of people and judges.