My sympathies with you. There is nothing wrong in seeking help in such situations. But please do not make this out into a big issue. Rumours remain live when we respond to them. Let it go. Please do not worry about your child also. He is not of an age where he will be bothered much about theses things. But he will be worried to see you affected by this and might feel guilty. Act normally and you will all feel ok soon. As far as that other lady is concerned, just ignore her and her vicious words. In my opinion, you will do well to keep away from that family.