Did Big Sean Cheat on Naya Rivera with 'Glee' Co-Star Lea Michele?

Chances are, when you heard about "Glee" star Naya Rivera breaking up with fiancé Big Sean, you weren't all that surprised. But this...this is intriguing.

Blind Gossip posted a particularly juicy bit of celebrity rumor today about an unnamed ex-couple that is pretty obviously Big Sean and Naya Rivera. Here's their story:

"It is hurtful when your fiancé cheats on you. It is even more hurtful when it's with someone you know. This pretty television Actress found hookup text messages between her Fiance… and one of her television colleagues! She screamed at The Fiancé about why – of all the people in the world – why would he f*ck around with one of her colleagues? The Fiance couldn't even deny it. The evidence was right there on his phone."

So it seems that the engagement ended because Big Sean cheated on Naya with one of her "Glee" co-stars. But which one?

Gawker is pointing fingers at Lea Michele, probably since Heather Morris is married and Jane Lynch is gay. But come on, who's to say it wasn't Dianna Agron? Or Melissa Benoist? As long as we're making wild accusations with no evidence, why not put Nene Leakes on the table?

However, if it is in fact Michele who broke up Rivera's engagement, that might make shooting the rest of the show sort of difficult. Rivera is one of only a few of the original cast members who is still a regular after the show's departure to the New York storyline, so putting her in the same room as her now mortal enemy is probably not good for on-set morale.

Who do you think did the deed?