You can do nothing and should do nothing. That is their support group and you should not interfer with it. Whether you feel they are getting good input or bad, that is not up to you to decide. You can not change how they feel, by trying to change there thought process or that of their support group.
I know how you feel. My wife has 5 girlfriends in her support group. 4 of them are divorced single mothers and 1 is on rocky ground with her spouse. I know absolutely full well that they are influencing her. I can see it in responses she gives me. After 15 years of marriage, I know my spouse's comments and I can definitely pick upon the words or comments that she makes to me that are her friends, not her own. She has even admitted to me the influence they are having on her. But, to attack their support group is to attack them. Prove them wrong, by being the exact opposite of how they perceive you. Show them who is right by your actions and the egg will be on their face.
“Do you want to be RIGHT or want to be LOVED” “You have to have a life to share a life with someone” “When you stop resisting, you start learning”
