One of the great reasons to play single player Baldur's Gate is to get away from females! Hopefully, it will be possible to have an entirely male stag party! That would certainly get rid of the "romance" posiibilities. And just in case the party have a little too much love-potion to drink, kill all the female monsters, just in case!
You assume too much. In this day and age, homosexuality is probably a thing in this game. Only lonewolf mode can save you now XD
