@Cayhr @ChristiJunior @Remi @Kyonko802 @bleedingphoenix BG3's character romances were reportedly (source: some Steam discussion thread that came up when I searched) directed by one Baudelaire Welch, a they/them who would like you to know via her Gamescom Bizcommunitythat she "grew up reading millions of words of Garrus Vakarian fanfiction".

The lead writer over her was one Adam Smith, a former game journo. Also under him was Kevin Vanord, another former game journo. I can't be bothered to follow up the other names, those being Chystal Ding, John Corcoran, Sarah Baylus, Stephen Rooney, Jan Van Dosselaer, Rachel Quirke, and perhaps others, but I'd guess they're spiritually closer to California than Belgium.