Any manga where the female lead is basically a gigantic slut and she becomes monogamous after falling in love with male lead?

Maybe her former "lovers" cause problems for the new couple?

Maybe she relapses at one point and sluts around again?

In the end though, it's the male and female lead together.

Otoko no Ko ni Toriko - She's not really a slut, but she's dated a lot of guys before falling for male lead.

The only thing that comes to mind is the Mushoku Tensei novel where an elf slut started monogamous relashionship after some happenings. It is about the side characters however so it doesnt fit perfectly.