The Expanse: A Telltale Series utilizes a sophisticated "relationship tracking" system. Minor dialogue choices often have more weight than the "Big Decisions."
Rayen represents the innocence and potential of the crew. Anu’s relationship with him is often maternal or sisterly. Protecting Rayen and guiding his moral compass is a recurring theme, and his perception of Anu directly reflects the player's ethical choices.
Here is a comprehensive look at Anu’s relationships and the romantic paths available within the game. The Core Dynamic: Anu and Maya