I am a mummy of 10 and a half year old wonderful boy. I split from his dad a few years ago and he still has contact with him but not a very close relationship. Ive recently been contacted by a woman who told me she had a fling with my ex when my son was very young and she also has a son with him who is 7 years old. I have now learned that alot off people I thought were like family to me knew about this and my ex has even provided for this boy for number of years (which he obviously should) but still never told me or more importantly my son about his brother. My feelings are very hurt but I now need to somehow explain this to my boy. Help!