That sounds super frustrating and a good reason why I've stayed away from groups. I feel like I do better in individual therapy anyways. If you end up going back to this group, I'm guessing it's a weekly meeting, than hopefully you get up the courage to express your feelings on the situation that unfolded that took up 2 whole sessions and how it would be best if we respected each group member's time being there by only bringing up important and relevant issues they are dealing with. I'm not saying you can't move past it, but there are times when it's important to stop, evaluate the situation, express our frustrations, and let it be known that you feel disrespected. I'm learning how important boundaries are and it seems like a definite boundary of respect was crossed when she wasted a whole session on a nonissue, then to have the therapist leading the group to focus solely on her again without addressing that obvious issue is just compounding that disrespect. Especially if you pay to attend these group meetings. Please think about bringing this up next session.