On Glee Forums they have spoken before of Ryan and Diana having some kind of falling out, its nothing new. Diana was invited by Lea to attend Corys memorial service so they seem ok. Diana was busy with promo for her new movie 'The Family' so some put her absence down to scheduling issues and others put it down to Ryan.
As for earier comments on Lea talking about losing both Cory and Finn I see nothing odd in that. Most of the cast and crew have commented in a similar manner.
"Jenna Ushkowitz ?@JennaUshkowitz
Tune in with all of us tonight to say goodbye to our friend Cory and our quarterback, Finn."
Dot-Marie Jones, talking about The Quarterback -
“It wasn’t just writing, it was a family member. We weren’t just portraying something in a script. It happened in real life as well. Yeah, it was Finn in writing, but it was Cory. That to me was the toughest part. I have a really amazing scene with one of the boys and I don’t think I’ve cried that much ever, other than when my dad passed 39 years ago.”
I am still blown away by Lea. She’s stronger than I am. I love that girl. I always have such admiration for her and respected her so much. It’s tenfold now seeing what she’s going through and how she’s taking care of herself. I pray to God she’s taking care of herself. I’m sure she is. She has a good group of girlfriends and friends and, you know, that’s so important.
Mike O'Malley on the Ellen Show -
"I think that the writers—Ryan Murphy, Brad Falchuk and Ian Brennan—have taken this incredible task, which was to write a story about a character that passed away and yet honor the actor and really show the audience the love that the cast and the crew…had for him," O'Malley said. "It was a really remarkable episode. I think it's one of the most beautiful episodes they've ever written on that show, and I think one of they've written some beautiful ones."
http://uk.eonline.com/news/468663/mike-o-malley-on-cory-monteith-s-glee-tribute-episode-it-s-remarkable-beautiful?cmpid=eonline-twitter&utm_source=eonline&utm_medium=twitterfeed&utm_campaign=twitterfeed_topstories&dlvrit=48939 Also Brad Falchuk talking about writing the episode
http://www.hollywoodreporter.com/live-feed/glee-creators-stars-cory-monteith-634813
Updated On: 10/10/13 at 06:40 PM