Please help.
I'm looking for a oneshot of Kagome/Jareth.
It kind of starts as Kagome/Sesshoumaru.
In it Jareth is seen crying because of Sarah.
In the story Kagome is Jareth's priestess.
Kagome has been seemingly depressed through most of the story.
Jareth at some point gets angry with Kagome because he thinks she still loves Sesshoumaru.
In the story Sesshoumaru stops sending letters to Kagome because he took a mate and thinks of it as dishonor to avidly speak with another woman.
Kagome confesses to loving Jareth but is afraid he is going to marry some other woman who is going to banish her the Eternal Bog of Stench.
In the end Kagome and Jareth get together.
Yes I know, with how much I know about it it should have been easy to find; however I just can't seem to find it.

I'm pretty sure you're looking for A Goblin King´s Miko by WhisperingKage

She was supposed to be his miko, not his pity party pillow. She sighed as she ran her hands through her lord's, the Goblin King, hair. Honestly the things she did for him. She grimaced as he sobbed into her lap. This was going to be a long night.

That's it! Thank you so much!

Glad I could help.