When My Kink Crossed the Line with My Partner

I'm in my first year of law school and have been in a serious relationship for over two years now. We've always had pretty open communication about sex, but recently I realized that one of my kinks might be too much to handle for her. Last week, we were out at this underground BDSM club downtown for our anniversary. She's into some light stuff like spanking and blindfolding, so I figured it wouldn't be a big deal to introduce the idea of simulated non-consent as roleplay, you know? We've done it before with other kinks, she usually gives in eventually after playing hard-to-get or pretending to object for a while. But this time was different. She got really upset and said she couldn't stop thinking about it since. I feel bad for pushing her, but I also can't deny how much I liked the power dynamic. We had such an intense connection, and I just wanted that edge again. Now we're both walking on eggshells. Should I back off or push forward with this kind of roleplay? It's a fine line between excitement and upsetting my partner.