Well, I think, the feelings may be a product of both therapy and personal history, historical wounds being a condition and therapy situation being a trigger. They could work together and aren't necessarily mutually exclusive.

Since the therapy situation is what it is, there is little one can do about it except to understand how it triggers them and to decide if they need to allow themselves to continue being triggered.

As far as historical foundation for feeling one way or another in every relationship, exploring it helped me tremendously both in terms of protecting myself and getting my needs met as much as they could under the specific conditions.

Whether one sees this type of exploration as "self-blame" or an opportunity for growth is an individual choice and, of course, it somewhat depends on how this is presented and with what kind of intention. I can definitively tell that I have no intention to imply that unpleasant or hurtful feelings in therapy is the client's creation and that therapy situation has nothing to do with it. As someone who has been harmed by therapy process, I would never imply that. What I am saying is different but, unfortunately, it gets misunderstood by many people over and over again, no matter how many times I try to explain it.

What I am saying is that the internal processes that get triggered in us by therapy are part of us and have always been before we started therapy. Now, that is NOT to say that therapy process can't harm because it certainly can. It's just to say that the workings of the system and how it affects people belong to the system, but the inner world and inner processes of each individual belong to that individual. Who owns what has to be clearly separated to avoid the whole blame game no matter who is blamed.

I am not coming from the position of blaming anyone. My intention is to understand and to separate what belongs to whom without applying any moral judgment. This attitude is the main reason why my explorations of my own processes do the opposite of self-blame, they make me feel empowered. The more I can understand about myself and the more of my inner dynamics I can own the more empowered I feel. I know others who take the same attitude and who feel empowered from understanding how their histories impact their feelings, behaviors and worldviews.

As to whether it's therapeutic to stay in the situation when someone who is supposed to counsel you is also an object of your strong attraction, I feel the same way as you do. It wouldn't be therapeutic for me right now and I would never stay in that situation after what I've learned from my experience. But I usually refrain from giving others advice to do the same. I don't know everything that's going on in OP's therapy and what she is getting out of it and so I am not in a position to see what is good for her. I trust that she will determine it for herself.