I hope this is what your looking for. It's not a happy ever after story.
Never Forget by BelovedStranger
A man unwilling to commit, a woman whose heart has shattered. Love can so easily turn to hate. Kagome vows to make Sesshomaru feel the same heartache he has inflicted upon her, but will her vengeful schemes backfire when, finally, Sesshomaru realizes how much Kagome means to him and vows to mend her broken heart? Or was he too late?
Rating: MA
Status: Complete
www.dokuga.com/fanfiction/story/9124/1