So, what's the deal with Shadowpussy?
Do you have to wine and dine her first?
Yes, it's one of the most cringe-inducing date scenes I've ever seen in a video-game romance.
BG 2 has some pretty awful romances, but man that wine on the river bit made me genuinely cringe. I honestly think that was written by someone who has never gone on a date before, let alone get laid.
If the player is BardMAXXXing and fucking everything they can, you can end up in a romantic relationship with Shadowheart, holding hands, a kiss per day, no sex... while at the same time fucking at least two devils, and a pair of Drow twins. Shadowheart even comments something like "well okay, as long as you save some for me", even though you haven't been together yet. Very bizarre.
And because I know Larian are experts at writing characters and plot, I am sure this is all planned and intentional, and therefore Shadowheart is a cuckold who enjoys watching you fuck other women while not getting any herself. Its canon.