Engaged and Experimenting...

I'm engaged to a wonderful man, but something's been gnawing at me lately. We've always had great sex and I feel incredibly loved, but there’s this part of me that feels...unfulfilled? It started when I was exploring some lingerie online and came across this really bold, barely-there set. The more I thought about it, the hotter it got in my head, imagining myself wearing it during a dinner date with my fiancé. I tried talking to him about it, but he’s always been pretty traditional. He’s great, don’t get me wrong, but maybe he just isn't into that sort of thing? The other night I went ahead and ordered the lingerie anyway. Just for myself. To feel sexy again. And while I was wearing it, it made me think about all sorts of things, how I’d never told him about my fantasies involving role-playing or bondage. So now here’s the weird part: sometimes I imagine other women in similar situations to mine, and wonder what they do when their partners aren’t quite as adventurous. Do you guys talk openly about this kind of thing? Or is it just me wanting more? Anyway, I’m not sure if there's a solution or if I'm even looking for one, but it’s definitely been on my mind a lot lately.