I totally know what she means. I'm english, living in France this year, and I speak French pretty well - I can express most things I need to express, and I speak in French almost all the time, with the teachers I work with. In fact there's only one who I speak English with almost all the time. Most of the time, I do fine and I can express what I mean in French, but just sometimes, when I'm really wound up or really unhappy, I have to go back to English just because I can't manage in French. Like the other day, something happened that reminded me of when I'd been assaulted, and I couldn't explain how I felt in French - the words just weren't there.

However, there are some things that I can express better in French, just because the language has a neater way of saying them - little phrases and such things. And with some people I do switch in and out of French, or they do - especially when we're tired and neither of us can keep up the effort in a foreign language for that long.

As far as writing goes, I only write in English. I have a little notebook where I record random thoughts and stuff people say, and unless someone says something in French, everything in there is in English. I can't play with French the same way I can English.

As to possesing another soul, I suppose to an extent that's true. I do feel slightly different when I speak French, just a bit more, well, French. Foreign, I guess. Like I'm not my boring old English self.