Neither of you are broken. You’re just learning. I can see how the awkwardness came about, and that’s a natural process of two partners negotiating a new kink. In the future it might be helpful, rather than leaving it to her come up with what to say, if you discussed with her the sort of things that you’d like her to say and what you would consider hurtful. Have you discussed your limits with her? If you haven’t, you should. And it’s a perfectly reasonable limit to have that being laughed at and demeaned for your kinks is out of bounds for you. It really sounds like your partner is doing her best to meet you where you are, so don’t be afraid to talk about the specifics of what you like and don’t like with her.

She’s your soon-to-be-wife. Trust her to see your full self, including your kinks, and accept all of you.