Kismesis
The story is based on the concept of kismesis, an institution in the trolls' culture in which a romantic and/or sexual relationship is based on hate rather than love.
[Commission] Diaperstuck: Eridan: Get stuck
Your former kismesis vriska has completely forgotten about you. and your once moirail, and the one and true matesprit of your thump tortoise, feferi has no intentions of ever giving you the time of day, after deciding to abdicate her duty.