I either connect with or dislike a T/pdoc right away, but even if I connect with someone it takes me a loooong time to trust them and be comfortable.
I disliked my old pdoc right away and did not and do not and will not ever trust him.
I connected with my old T right away but it took me nearly a year to even start trusting her... sadly she moved away before I was able to develop more trust in her.