answer:I suspect this happens more than we think. Even in a family as a group for example. There comes a point in this situation when one has to let go. Whatever that means for you. You’ve used a study group here for an example. Letting go would be accepting that this dynamic is pretty uncomfortable for you. Or you feel in some way shunned. Apart from the obvious of saying try and reach out, to one member, or two on similar levels. I’d say accept it. Accept the goal is the important thing. Learning. Turn your focus back to the learning aspect. Become interested in the subject. That way you will be contributing by default. Common sharing does create a bond of sorts. I have had this feeling with various people including family. Or extended family brought upon by my ex husband for example. So I went about managing the relationships. Standing back and becoming an objective viewer of the group dynamic. Life is a lot about managing people. Particularly the ones we find difficult. Group dynamics can be difficult, they have their own internal dynamic. One has to see if this dynamic is helpful or not. Trying to fit in only works if it is of benefit to you, your higher self.