There won't be a true end to the madness until you find the courage to tell your T the truth. Truth is what clarifies and heals in therapy, and in life. Honoring your feelings, accepting them, sharing them, resolving them.

I'm dealing with attachment in therapy now, and it's hard, but 20 years ago, when I first did it, I had an excellent, healing relationship and did come out of it a 100 times better and have held onto that relationship without talking to her except for one brief message on Facebook in an entire 22 year period. I did therapy as a teen, and just now returned to do some therapy about 20 years later to deal with some new issues. I've been in therapy again now for 14 months.

So, I do believe it's important to deal directly with transference and it's not the same as finding a love interest in real life that's unavailable and leaving. Transference in therapy can be about pinpointing needs and finding ways to meet them as best as possible, but it is also, equally validly, exists the attachment, warmth and support from the therapist that is nurturing. There's nothing wrong with wanting that, and appreciating that, and in time it can settle. How long have you been in therapy?

P.S. If you are, as you mentioned, dealing with the fundamental issue of your father, I hope you'll appreciate that it may take a little time to work through that, including working through your attachment to your therapist. You've seen improvement in your other issues, which is great, and if you're looking at a core issue like that, it deserves some patience and kindness as you work through it. You may decide the payoff is not worth it, and that's entirely your prerogative, but I don't think you're being fair to yourself if you don't share about this important issue with your T. I know it's powerful, but.... your feelings can't really hurt you, and sharing often helps defuse them, or at least begin the healing process.