with all of this information that she came upon, that might be different. She always mentioned Dante should know, but I don't recall much being said about Gio or whoever the child turned out to be. Also, she should not have been discussing the situation at a very public event even when you think no one could overhear your conversation. In a town like PC where people are either related or they all know each other, the chances are that someone at the NB might hear the conversation.
As far as Lulu and Dante "never" getting back together, it seemed they were moving too quickly with this anyway after Sam's death.
