There have been some power shifts going on, and you need to make sure that you aren't getting the short end of the stick. Do you have a voice in group activities, a vote in how things are done? If you are always deferring to what other people want, you might be a great collaborator: but you could also be sending a message that you are a doormat to be walked all over. Don't give up so easily today. It's time to show everyone that you cannot be taken from granted.