My Kink and My Partner's Limits

I've been in a relationship for two years now, and everything has been great. We have similar interests, enjoy spending time together, and are comfortable with each other physically. However, I recently discovered an interest that my partner doesn't share, BDSM roleplay. To be clear, it's not about hurting anyone, just the power dynamics involved in a consensual setting can get me really excited. We've had some discussions around this topic. My partner is open to experimenting and tried one time I suggested, but after that experience, they made it clear it wasn't their thing and didn't want to do it again. It's always been clear we respect each other’s limits, but my interest hasn’t gone away. As a bartender, I see plenty of people enjoying themselves with kinks or roleplays late at night, which has only sparked more curiosity in me. Lately, though, I’ve found myself struggling to keep it out of my mind when we're intimate, and that's making things complicated between us. I'm sure some might think this isn't a big deal, it's just a preference, right? But the truth is, there are moments when I find myself imagining scenarios involving these elements. It’s like trying to ignore an itch you can’t scratch. And while my partner knows about this, they’re clear that it doesn’t turn them on at all. I’ve been considering talking more openly about it but worry it might cause tension or misunderstandings since we both have our limits and boundaries. I know there’s nothing inherently wrong with having a kink or wanting to explore something different in your relationship; however, navigating this particular aspect while respecting my partner's comfort level is tricky. So here it is, my kink, their limit. It feels like the kind of thing I need to talk about but also feel guilty for even thinking about sometimes. Regardless of how others might view it, I know that what matters most is us being honest with each other and respecting our boundaries. I’ll keep trying to find a balance, because while my curiosity hasn’t diminished, neither has my respect for my partner’s desires.