Age gap romance where she fell first but he fell harder

Hey everyone,

I’m looking for age-gap romances (older man/younger woman), but with a specific vibe. I want an FMC who actually has self-respect—like she confesses first, gets rejected, and instead of chasing, she just moves on with her life.

Then the MMC realizes what he lost and starts pursuing her. Bonus points if there’s some solid groveling involved.

I know this is kinda specific, but if you’ve read anything similar, I’d love some recs!