i have a kink my partner doesn't share

so there's this thing i've wanted to try for ages but it's like super specific. it's rough play and being dominated in public, you know? we live on base and one time me and my husband were out walking by the commissary and i thought what if someone saw us kissing intensely or stuff like that. it got this weird power over me, fantasizing about him doing things to me where people might see or hear. i told him about it once but he's just not into that kinda thing. said it made him uncomfortable and he didn't want our marriage to turn into something we're forced to do rather than both wanting it equally. makes sense i guess, but it kills me because deep down i know what i really crave. the other day though, i was walking back from the PX with a couple of grocery bags when this random guy walked past us and he gave me a real long lingering stare that made my insides flip. i don't know why he did it or if he even noticed anything at all but his gaze lingered on me in a way that got my panties wet instantly. then my mind went straight to imagining what it would be like if my husband was there with me, doing something naughty and explicit where everyone could see. i pictured him pinning me against the wall of some random building or taking me up against a tree somewhere out in the woods or parking lot, pushing me up hard against a car. i thought about it all night, my husband holding me close to sleep but i just couldn't get that feeling out of my head. he's not gonna let us do anything like this, but oh man do i ever want him to. being seen by others while getting roughed up with his hands and mouth against a wall sounds so good. i know it's weird but the idea just eats at me sometimes.