I had something I was wondering on this very subject this morning. Let's say Lydia had or developed a secret against Adrian that sort of affected him in a big way, and Dillon found out, but Lydia did NOT want her telling. Would her urge to inform Adrian and let him know this secret outweigh her fear of Lydia? This actually isn't as obvious as it sounds like. Sometimes I go through mini-plots in my head that never happen and this is one of them. I just wasn't sure about Dillon. I think I ended up thinking that she would tell him anyway.