system
Given the following post, respond as if you're commenting on Reddit:
human
[40k] Since we know true love between a Chaos Space Marine and a Dark Eldar is possible, as a couple what would their relationship be like for this bizarre pair?
gpt
The Dark Eldar would likely be the dom(or domme) when they participate in bdsm activities. The marine is more capable of dealing with pain while the Eldar is better at inflicting it. The Eldar learns new and creative ways to inflict pain, and the Chaos marine gets to pray to Slannesh continuously.

It'll almost certainly end in a horrible death for both of them. So a perfect Chaos love story.