Ah, I never read the comics so you know far more than me Jmorty.  Talia I know got possessed by her father, Raz Al Ghul in one of the Batman Beyond episodes so mentioning that little tidbit to Tim would probably set some alarm bells off when word reaches Bruce and all.  I remember they had a thing going on, briefly since I've only seen that episode once but I'm sure I'd remember more if I went and watched it again.  I know where I can find it easily enough too.  Might do that now that I've gone and talked about it so much lol.