Tony, thanks for your two cents.
You know better than me how rare amazing sex is for most women across all age groups.
According to her, I am her second guy in her life and the first to have given her orgasms.
Right before me she was in a 5-year relationship with her "high school sweetheart" who did not ever give her orgasms, according to her.
I would just expect that this skill alone would be enough to make her stick around.
Please, consider an article for more advanced men about the limits of masculine self-improvement or about how sometimes being the best version of yourself can still be not enough for some women out there.