I know its complete, and either rated T or M, its sess/kag, and If I remember correctly, something happens to make Kagome leave the group, (though I can't remember if she immediately starts traveling with sesshomaru or not, but I do know they eventually start traveling together...) And for some reason Sango is acting very differently, and Kilala gets upset and leaves the group to look for Kagome, who she has decided would basically be her new mistress. No one even notices that she has left...

I remember reading from kilalas POV when she left, and she was thinking along the lines of "I can't believe she (sango) is the one I have spent so long protecting." ..... That might not be exactly it, since its been so long since I've read it that I'm not sure, but it was definitely something to that effect.... I'm sorry I can't give you guys any more info than that, but its absolutely all I can remember...

I remember this one. Sango was sleeping with both Inuyasha and Miroku I think. Kilala left because Sango was sleeping around and lying to others. I can't remember the name though.

Sounds like Metamorphosis of a Miko by Serena530
www.dokuga.com/fanfiction/story/9569/1
One night Kagome comes to a number of disturbing realizations about Inuyasha, and Sesshomaru comes across her during her thought process.
Rating: MA - Universe: Canon - Status: Complete - Category: Chapter Stories - Genre: Romance - Updated: 06-22-16 - Created: 12-25-14 Chapters: 6 - Reviews: 79 - Words: 47,265 - Reads: 29,710 - Anonymous Reading: No

Thats it! Thank you for your help!