EXCLUSIVE: 'Bachelorette' Sneak Peek: Nick Viall Tearfully Tells Kaitlyn Bristowe: 'I'm Scared to Death'

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Cue the tears!

Bachelorette Kaitlyn Bristowe slept with Bachelor alum Nick Viall in her room last week, and now he's getting emotional about their relationship.

In an ET exclusive sneak peek, we see Nick opening up to her. "I'm terrified. It wasn't easy last time. It's not easy this time. I feel like such a wuss," he tearfully says in the clip.

Viall was on Andi Dorfman's Bachelorette season 10, but she did not pick him and he was devastated.

Now, his fears are getting the best of him again. "I spend time with you, and I leave with this confidence," he tells Bristowe. "But then I remember that I was the overconfident guy. It just makes me very nervous, and I’m scared to death."

WATCH: Kaitlyn Bristowe Addresses Awkward On-Camera Sex Noises

Although Viall assures Bristowe, "we want the same thing," it's hard to tell if Bristowe, given her expression, actually agrees with him.

On tonight's episode, Shawn B. will visit Bristowe late at night, and it's pretty obvious she thinks Shawn B. knows about Viall. But does he really know about her intimate time with him?

Bristowe will also face a decision between Joe and JJ during a two-on-one date.

NEWS: Did Kaitlyn Bristowe Reveal the Winner of  'The Bachelorette'? 

ABC promises a surprising episode as host Chris Harrison will have a talk with Bristowe and agrees to have a Bachelorette "first" -- allowing Bristowe to say good-bye to one of the men earlier than later if she simply doesn’t see a future with him. And if that wasn't enough, when an excited bachelor receives the first date card in Killarney, Ireland, ABC teases it will be “one of the most gut-wrenching scenes in Bachelorette history.” Yikes!

Bristowe spoke to ET about her scandalous night with Viall after the show's much talked-about episode aired last week. Check out why she thinks people would have "moved past" her episode if she was The Bachelor in the video below.