Silas Weir Mitchell Silas Weir Mitchell

It's not easy being a modern, principled Blutbad.

When Grimm returns Friday (9/8c, NBC), Monroe (Silas Weir Mitchell) tries to reason with his parents, who dropped by in the last episode to meet Rosalee (Bree Turner) after hearing of their son's engagement. Fans may recall that the meeting didn't go well once they realized she was a Fuchsbau.

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Monroe stands his ground, but his parents are traditional Blutbaden who wouldn't dream of giving up meat, much less consort with a Fuchsbau or — heaven forbid — a Grimm (David Giuntoli). The interaction gets heated and ultimately heartbreaking. Check out the exclusive sneak peek below:

We hope for his sake his parents come around. We'd hate to see them come to blows with Nick.

Grimm airs Fridays at 9/8c on NBC.