She may be trying the group on for size and she may decide that you are not her cup of tea either. I'd give it some time. If she is a drama queen, then not getting the response she needs will make her not come. If she is just suffering from newbee jitters, she may well adapt to the cameraderie in the group and fit in. You just never know. I met my BGF that way. Told DH that I will either have to kill this crazy woman or befriend her and as I didn't want to go to jail.....30 years later we are still friends and she is still crazy. lol