In the Witcher 3's "Ashen Marriage" quest, set in Novigrad, Geralt assists Triss Merigold and her fiancé, Castello, with wedding preparations. His tasks include monster extermination, procuring alcohol, and selecting a wedding gift for Triss. The gift's significance impacts Triss's response; a memory rose, a callback to Witcher 2, elicits a strong emotional reaction, unlike less sentimental choices.
However, Dijkstra's revelation of Castello's ties to witch hunters throws a wrench into the proceedings. Castello is revealed to be under duress, blackmailed by the hunters who threaten to expose his illegitimate daughter from a previous marriage.
Geralt can choose to reveal this truth to Triss, either alone or with Castello. Regardless of the approach, the wedding is called off. Triss's reaction varies; disappointment in her fiancé or gratitude for his honesty, but ultimately, she deems the marriage premature.
This unexpected turn could have significantly deepened Geralt and Triss's relationship dynamic while enriching the development of supporting characters.