I am so pro hugs and it is what My therapist and I argued about for 18 months. Looking back I should have just hugged him whenever I wanted to and he would have had a hard time pushing me away. I should have just been me, I hug. Hugs to me are like breathing, necessary and important and normal. in the end he hugged me and for a while it was heaven. Like for years. and then I stopped feeling hugged by him. Maybe because he was going off me, who knows.
Anyway, don't let their idiosyncrasies get to you. Therapy is a made up place - people have made up rules as they went along. It might be in the 50 years time everyone will laugh at how contrived it was and how some of it was so unhelpful. don't take it personally.
I anguished over the hugging rule. I got upset and cried buckets. I felt hurt and rejected. I hated him for not hugging me. I am so glad he did in the end. He just said ' I don't hug' but that was not good enough for me. But be warned: this 'to hug or not to hug' topic tends to polarise people and each side doesn't understand or even usually want to try and understand the other parties view point. So - be confident in yourself, wanting a hug is normal. Being turned down is usually horrible and remember it is their stuff not yours. Hugs to you.