If love is really blind, can Nick look past Juliette's new side?

When NBC's Grimm returns from its hiatus on Friday in its new 8/7c timeslot, Nick (David Giuntoli) is still reeling from seeing his girlfriend Juliette (Bitsie Tulloch) totally woge out in front of him.

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It's one thing to be friends with Wesen, but until now, he's never had to deal with making love to one (knowingly). Could this be a relationship deal breaker? Check out the exclusive sneak peek below to find out Nick's reaction:

Grimm airs Fridays at 8/7c on NBC.