Well, if she's totally negative about any suggestion involving sex and touching, even after calmly explaining the why and how (and maybe reading together DPM articles), then it's likely she falls into one of three cases:

1. She's "sex negative" and is not interested in sex no-matter-what (maybe she has some trauma or low libido or whatever). There's a DPM article about how to identify such persons: https://www.drpsychmom.com/2017/09/09/how-to-tell-if-your-partner-will-stop-enjoy-sex-after-marriage-and-kids/

2. She is not into you anymore, to the extent that she finds touching or sex with you almost repellent. She may still feel affection for you, but not on the physical level.

3. She doesn't care about you at all. Therefore, she has no interest whatsoever in what may makes you happy.

In all three cases, I'd cut my losses and I'd begin planning for an "exit strategy" (or at least find a lover on the side ;-). You deserve to feel loved the way that works for you. :-)