You know, I understand the dice system for combat. But for Dialogues and romance? Nobody roll dice to get a Kiss.
Well it depends on the romance really. Take Minthara for example, she attempts to assert a dominating role in the relationship...except she's kind of evil aligned(and probably so are you if you get to that point with her), but it's probably not smart to let that continue unless you plan to get stabbed or sacrificed later...at which point your only way out might end up being to fight your way out or breaking the relationship. It's best to approach that relationship with caution...to assert control you need to pass a roll of 20(!) in persuasion. Stuff like that might end up being necessary to save that relationship. Lae'zel is has much the same attitude and the Githyanki are evil aligned too. I very much suspect that high charisma will be key to keeping members of your party from leaving or attacking you in some instances or pushing them to change their views and be more agreeable...not to mention that you can use charisma skills to avoid some crazy combat encounters as we saw in the PFH along with who knows what else. Also gotta break Minthara out of jail and I'd prefer to do that without causing a ruckus and the entire building coming down on our heads.