It's interesting- I think your current therapist has pathologized, denied and avoided your normal feelings of relational attachment (ie: feelings of platonic love, parental transference, warmth, etc) to the point that you have internalized his message and you've begun to view said feelings as problems within yourself that the "other" has to deal with, which they absolutely are not. In fact, I would argue that those feelings demonstrate your health and capacity to love and attach to significant others in your life. Many therapists would be thrilled to work with a client such as yourself. You are absolutely ready to engage, challenge yourself and grow. Your current therapist just can't meet you at your level.

Therefore, instead of explicitly asking about transference I would simply say something like this:

"I'm a hard working, self-aware, and stable client who prioritizes my individual therapy and takes seriously the work required to achieve growth and understanding. I have never been late or missed an appointment (other than an actual emergency). I prefer to meet twice per week and I'm looking for a therapist who works relationally. I've gained a great deal of insight and learned useful coping skills with my current therapist, but I feel I'm ready to move on to the next stage of my therapy journey and challenge myself by delving more deeply into relational work with the right therapist."

Obviously tweak this so it fits you- but the point is to let the prospective new therapist know your strengths and that you are committed, educated and engaged in this work---and most importantly that you're looking for someone who can meet you on your level.