I could see it working either way, honestly. My initial thought about it being more about wanting Philip but it being freer was more thinking that was kind of the next natural step for them to take sexually, but you're right that they do a lot of roleplay, which would make it both fun but also a little loaded.

Philip might even, on some level, ultimately enjoy it more in a way because it speaks to the natural way he sort of is--fluid in different personalities--I just think it could be emotionally trickier if they try to use one of his personalities that he specifically uses to keep things separate while spying in a psychological sense. Like Elizabeth would potentially enjoy more aggression from him in bed, but would probably be triggered and unhappy if they did something that came too close to reenacting the rape. Similarly, he might like getting to slip into another personality for fun sometimes, but it would need to come with him having some control over how that was chosen so it doesn't get into one that makes him uncomfortable then or later in the way it screws with things in his head. If that makes any sense...