My wife saw my in my first kilt (SK) and was nice about it but I knew she was not impressed. I thought at that point she would never be into it. I received a double box pleat wool kilt and I put together a nice day wear look with it. Well she didn't say much the first time I wore it. But we had a "date night" the other day and asked if I was going to wear my kilt I laughed and said no. She asked why not? She wanted me to wear it. Well we were going into the city and I wasn't having a good day so decided to skip the kilt just in case some jerk made a comment. We got home and she said 'ya know I really like your new kilt you shoulda wore it'.
Maybe you need to wear it a bit and it will grow on her.