sicily posting: Matthew Morrison on Will's Wedding, a "Big Feud" and His "Rejuvenated" Return to Glee

Last week, millions of Glee fans were shocked - and more than a little horrified - to see Finn (Cory Monteith) lay one on Emma (Jayma Mays) days before she ties the knot. And they weren't alone.

"I couldn't believe it. I was like, 'What happened? What did he do?' It just didn't make any sense," Matthew Morrison tells TVGuide.com. "It still kind of doesn't make sense in my mind, but a lot of things in this show are kind of funny."

Despite the brief smooch between the bride and the best man, Thursday's special Valentine's Day episode (9/8c on Fox), entitled "I Do," will feature the long-awaited wedding of Wemma, one of Glee's most beloved on-and-off couples. "It was kind of messed up, but it leaves room for a lot of drama and tension," Morrison says of the kiss. "I think the wedding is going to go pretty smoothly, but I think there will be some aftermath in some episodes to come. ... It's going to be a nice big feud for a couple episodes."

Glee recap: Sound off on Finn, Tina and Santana's big moves

However, it's not just Finn's surprising betrayal that will create drama for the couple. The time apart during Will's months-long exodus to Washington D.C., will prove to be a major hurdle for the couple. "Will and Emma have been apart for so long. ...Their relationship is a little tepid, a little on the rocks. They have to find their way back to each other," Morrison says. "There's some trying to figure out what is the right thing to do and ultimately, it happens how it happens. You have to see it to believe what happens."

Thursday's episode is a particularly big one for Will, who returns after months away from both his fianc?e and his beloved glee kids. "It's a re-introduction of Will," Morrison says. That time away from the grinding Glee schedule had a huge impact on Morrison. "I think everyone on the show needs to have that kind of time off because I came back so rejuvenated and ready to go and I came back and all the crew and cast looked kinda tired," he says. "It was wonderful for my soul and just for getting stuff done in my life. It was a really great time off."

Photos: TV couples that need to break up

The break not only breathed new energy into Morrison but also into his alter-ego, who will (finally!) get back to performing upon his return. "This is some of my favorite stuff that I've ever done on the show," he says. Morrison specifically points to a dance number featured in the March 7 episode. "I get to do this very famous dance that one of my very favorite dancers of all time got to do - it kind of defies gravity. It's just an amazing number," he says. "It's just been a lot of really fun stuff. It's good for me to be able to perform on the show because it's been awhile." (Sadly, no word yet on when, if ever, Mr. Schue will rap again. "I think I need to get my white-boy rapping skills back in check," he jokes.)

Will's return is far from the only one fans can expect for the big V-day ceremony. Most of last year's grads, including Rachel, Kurt, Quinn, Santana and Puck will visit Lima to witness their old teacher tie the knot. "We haven't all been in the same room like that in a while and it was very nostalgic. It was fun having that energy and people you're so familiar with being in the same room, and also it was a chance for some of the old cast members to hang out with some of the new kids in the glee club," Morrison says. "It was a big family reunion."

New photos: Glee is going to the chapel! Who is coming back for Will and Emma's big day?

Morrison says reconnecting with the current glee club kids will be a challenge for Mr. Schue because of heir brief disqualification after Marley's "Gangnam Style" fainting spell. "[He's got to] get them back into shape," he says. And what will he think of how closely Finn followed in Will's footsteps while he was gone? "When I first saw some of his outfits, I was like, 'Oh my gosh,'" Morrison jokes about Finn's sudden penchant for sweater vests. "But Mr. Schue has always been like a father figure to him so I think he learned from his mentor and he was trying to emulate Mr. Schue in a lot of ways."

Trying to emulate his mentor, however, won't excuse last week's lip-lock so easily. "I think it's going to be interesting with Will finding out about the kiss and seeing what their relationship is going to become now," Morrison says. "I think it's going to take a while for them to get back in each other's good graces."

And what about the other pair of lips involved? Even if Will and Emma do say "I do" on Thursday's episode, it sounds like their problems are far from over. However, Morrison is optimistic Wemma can work it out. "In the long run, I hope so because they've been wanting this opportunity for so long and I think the audience has been really longing for this to happen," he says. "I think it would be a great thing for the show and for them."

Glee airs Thursdays at 9/8c on Fox. Do you think Will and Emma should tie the knot? Or do they need to hit the pause button after that smooch?

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