From what little I know of the books these two haven't exactly been faithful throughout their marriage, not the first time Triss has been involved either. So she's not gonna thrilled about the situation but is not unexpected.
I'm resisting the urge to watch them because I know it's so damn close and I'll be too excited until it's out. I also received an email from GAME this morning that my pre-order price has dropped to £44.99. Awesome news.