i have this thing for spanking during sex

so my partner and i have been together for like 6 years now and we've had some pretty good sex but lately ive been thinking about something new, a kink i havent explored yet. i started off just watching videos on it, learning the mechanics of it all but then one night as we were getting ready to go to bed i brought up this idea of trying out spanking during our next session. my partner looks at me and says its not their thing and they dont wanna try it which is fine i get that everyone has different limits. so yeah ive been keeping quiet about it since like a month ago, but the other night as we got in bed something just snapped inside me and i asked again. this time i told them exactly what i had learned from all those videos, how to hold their hand and where to hit on my ass with some force, and even went into detail about the sensations im expecting during sex after a few hits. they look at me like i grew another head, shaking it slowly before saying no again but this time more firm in their refusal. ive been thinking a lot since then if i should just leave them for someone who will take on my kink or keep quiet and just be happy with what we have. its not the end of the world by any means but its like a huge thing inside me that needs to come out sometime soon.