Therapists are just ordinary people with some experience in their field, like a plumber knows plumbing, a therapist knows therapy. But what is actually therapeutic differs from person to person. I don't think being attracted to your therapist is necessarily a problem, or even a therapist being attracted to their patient - any more than it is with a plumber. If he or she is a professional, then they will work around this.
The problem begins when you begin to care what your therapist thinks of you, or most of all, vice versa, if your therapist cares what you think of them (in that case, definitely game over). The more concerned we are about how we appear to another person, the harder it becomes to be ourselves. And the whole point of therapy is being yourself - or finding out what that is and learning how to be true to that.
I don't think you need to wish away this experience, or that it will help at all to try and do so. Any experience can have therapeutic value if we can accept it and integrate it: the more unpleasant an experience is, in fact, the greater the potential for integration.
The trick is to read it impersonally, as you would a dream, or a scene in a movie, and see what your unconscious is telling you, via the details of the drama. That's the aspie way.
The NT way is to take it personally and get all bent out of shape or use it to put a feather in our caps. That's much more limited, and limiting.
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"Experience has shown, and a true philosophy will always show, that a vast, perhaps the larger portion of the truth arises from the seemingly irrelevant."
Edgar Allan Poe