Hey Sue, I am extremely proud of you to have tried staying. Of course, we all have things we find more interesting (pleasurable) to do. It is perfectly okay if you want to do a different thing from them, perhaps you can try to suggest to them what you feel is most comfortable for you to do the next time everyone gets together to plan?
As for how you can overcome being "closed", maybe you can try interacting with them one at a time, perhaps pick the most comfortable face among them for a start before you take on a bigger group?
