can you explain to your son what you mentioned in your last post? maybe then he'll let it go. it sounds like she doesn't know her dad isn't her bio dad and i'd think that news really should come from her family. i'd think it'd be pretty traumatic for her to find out something so important from people that to her are strangers. it's unfortunate but i'm guessing her parents never told her and probably have no intention of doing so at this late date.