It sounds like in your group leader feeling uncomfortable about something that happened, she is not communicating clearly with you, and in turn it is making you uncomfortable and it makes sense that you would feel badly. This is understandable and you have my sympathy. I don't have an answer about what she's talking about. I'd advise you to ask her, but it sounds like she's setting strange boundaries. Either that or I'm just confused by what you've written. Idk. Have there been any issues with you and her before this? Can you go to your church's pastor or someone who is in charge of her to ask what's going on?
I also see that this is your first post. Welcome to PC, roxannejones.