Hello Sidony.
I am sure with group therapy being new to you at this point, there are many things you will be somewhat uncomfortable with from others talking about things you are not ready to talk about yourself. It is okay to feel that you have feelings regarding your therapist. I feel that a lot of people feel thankful and kind appreciation for their therapists because they have helped them overcome obstacles in their lives and have been sympathetic to their suffering. The main objective is not to fell threatened that others feel or act differently than you would act or feel, and that you do not take on the negative aspects of feeling left out or different.
Some people are just not as open as othere people are in groups. Journaling is a good option for people that are not open in public or group settings or as open as they feel they should be. Time takes care of a lot of the social issues wehn you are more comfortable with the group it is easier to focus on sharig in a more trustful manner. Take care and good day. Soidhonia