I 26M feel really upset after partner 32F asked that I agree to a prenup. I don't know how to proceed?

I can understand where she comes from. Her previous partner has caused her a world of hurt and on top of that she has far more extremely lucrative assets than I do. She has fought extremely hard to build up what she has.

The thing is I'm not that guy. I wouldn't want her stuff if we did split and more importantly I don't like the idea of us needing a legal document for her to trust me. It also just doesn't sit right with me to prepare for breaking up.

Our relationship is extremely young. We agreed to go official 2 weeks ago.

A few other extra pieces of context is she's currently doing a stressful training course as part of her job in a different city. I don't want to make a big deal out of this and detrimentally impact her welbeing when she has a lot on her plate. But I'm feeling hurt and I'm pretending everything is fine.

Last night I told her I'm happy to agree to the prenup. But today I don't want to.

Tomorrow I'm going to call her and ask to discuss it but can reddit help me with their thoughts. What would you guys do if you were in this situation.