Larian Studios Forums Baldur's Gate III Baldur's Gate III - Story & Character Discussion Shadowheart Romance and the Hidden Fetish - (Spoilers inside)

TL:DR of above:

Until they change this rather toxic situation, the only canon way of having Shadowheart not dream more of Halsin than your Tav, is by killing him before he gets to speak! ALL HAIL THE GOBLIN KIDS! They were just trying to secure your Tav's future!