Credit: ABC

Dressed in a suit, ready to propose with a gorgeous Thai landscape surrounding him, everything seems to be going as planned for Bachelor Sean Lowe on the upcoming Season 17 finale. But then he receives an envelope and, opening it, exclaims in shock, “I can’t believe she’s doing this to me.”

Ever since that scene aired during a promo for the March 11 episode,  fans have been dumbstruck. Who’s the letter from? Who is “she?” Does it affect the ending? Will Sean opt out of proposing to either Catherine Giudici or Lindsay Yenter — and instead go home brokenhearted?

Now, Wetpaint Entertainment exclusively has the answer. “The letter is from Catherine,” a source tells Wetpaint. “She had something important she needed to tell him before he went ahead with his decision on who to pick — her or Lindsay.”

What was so urgent that it couldn’t wait…and DID it affect Sean’s final decision? We won’t ruin it for you. You’ll have to tune in to find out! Sounds like this year’s finale is going to be a doozy. We know we’ll be tuning in!