That Berelain won't become a lovesick/love-crazed idiot in ToM, if she suddenly falls in love with Galad. That could be painful to watch, even if it's supposed to be funny..

I still have a little hope that Berelain will soon return to Rand and maybe eventually hook up with Beslan instead. Maybe she was brought to Rand's group alongside Tam to report what has happened with Perrin & Co. and we will learn this in ToM.