Thank you everyone for your posts & the help you've given me. This is such a touchy area & I hope it helps shine a light on the subject for others.
What I'm saying is I love this alter ego type part that comes out when I'm sexually arroused. There is sexual consent, I know that was a question, but she's different in her sexual exploration where I'm not. Just things I haven't really thought of doing....she's all pushing the limits to do it. I go along w/everything bec...well she's fun!
But I think my partner knows this & is starting to be aware of this "switch" to the point that I feel it's invoked on purpose to get this other part out. I have to say I can't blame him bec....well again she's fun.

But am I, Patagonia getting lost in it? I don't really fit in & for me it's like always watching a movie of myself. I almost feel....cheated in a way. Is this other person interested in me? Or this other part? And is this other part starting to take over more & more on purpose to get what it wants.
Can I the "host" be pushed entirely out by another "part." Can that part become the host then?
It makes me very confused.

I haven't been able to talk to my T about this bec we've had a major fall out over difference in opinion & I'm not sure I wanto discuss this with her. She seems to focus on the wrong thing.