Silas Weir Mitchell and Bree Turner Silas Weir Mitchell and Bree Turner

Smell that? That's Wesen love in the air!

Just in time for Valentine's Day, check out this uber-romantic walk down memory lane for Grimm's heartwarming almost-couple: Monroe and Rosalee, aka "MonRosalee."

PHOTOS: Surprisingly sexy TV characters

Who could forget their bonding over that virtuoso Austrian zitherist Whatshisname or that idyllic picnic where they were attacked by a diseased porcupine-like Stangebär? Not us! And with Rosalee (Bree Turner) returning to the spice shop after caring for her sick aunt, expect more tender sentiments like "I just wanted to say I'm glad you know how to clock a dude with a brick," from that silver-tongued clock repairman Monroe (Silas Weir Mitchell).

Check out our exclusive first look at MonRosalee's most amorous moments:

Grimm returns Friday, March 8 at 9/8c on NBC