Ginan, I am glad you found my reply helpful. Thankfully, it landed in the right place. And thank you for your candid response here. A few things come to mind with what you describe happened in the last session and what has been happening to you with this therapist in general.
First, and most importantly, I believe sometimes it is not very helpful to go back and go back and go back to the trauma in which one was essentially powerless. What for? To relive it and remember how powerless one was? It's only helpful to a point. So in that, I think it is totally acceptable to relate to your therapist that it is not helpful to you to go back and relive the trauma in detail. There are approaches that entirely leave out the details of what has occurred and instead focus on what its effects are in the here and now. A much more productive approach and one that brings me to...
...the projections you mention toward your therapist and also the awareness you are gathering through the process. You mention "arguing" with him, which, of course, might be an incompatibility in communication style. When he believes he is challenging your notion that he is "sadistic" (because he is not. Not my judgement, just an option) you might interpret it as gaslighting. What he may be trying to do is not so much discount your reality, but open your eyes to WHY you are interpreting his words as such. I sincerely hope, however, that he has stated plenty of times that you are entitled to feeling about it however you feel about it, and doesn't blame or belittle you for feeling this way.
Therapy can often feel like someone is f*cking with you, simply because one's reality, everything you believe in, is profoundly challenged. The fact that you went into therapy aware you would be or already are in a sexually vulnerable position (because he is a man,) plus the myriad of projections you mention, makes for a volatile therapeutic environment to begin with, so it is not surprising you leave feeling confused and messed with.
I think the issues here is no so much whether or not he was/is angling for an affair (from what I've read, there is no evidence of that,) but rather the trust issues you have developed out of a combination of his maleness and perhaps personality (hey, therapists are people too.)
You could be just short of going through a breakthrough with this therapist. An A-ha moment in which he can help you understand your underlying beliefs and traumatized parts regarding sex and men by hand of your struggle with him (which is what transference analysis is about,) OR you could be becoming aware that your work needs to be done with a female therapist, just to take the sexual component out of the equation if it is too much of a distraction for other, more pressing issues you need solved.