My thoughts are that she’s remaining a professional in all occasions. She wasn’t going to say “we’ve been together for a few years, and now we’ve broken up, I’m hurting but I had to deliver and do the job anyway so here we are.” She’s never going to tell us the truth about her feelings for David, either they’re good or bad. So friendship is what we get, and what we’ll always get unless they decided to get back together and come out.