Please excuse me while I build my list of High Noon-ish Shassie colored glasses sightings (with much, recurrent, even excessive, editing as I watch it again):
--"Handsome pasty devil"
--Shawn: "You can count on us." Lassie: "I knew I could."
--"Binky! Come back!" (Basically, anytime Shawn calls Lassie Binky will fall under the jurisdiction of this list)
--Shawn listening so closely about Lassie's childhood, and especially the adorable little grin he gives!
--"Shawn, come here." Followed by private talk between just Shawn and Lassie, followed by TOUCHY!, followed by "Don't worry Binky, I already have a plan." (said with a smile just for Lassie)
--Does Lassie smacking Shawn's feet off the table count? It could be seen as a familiar, domestic gesture... (okay, that one's a stretch)
--"Costume party?" (Okay... not exactly Shassie, but strongly heterosexual statement that is not...)
--Lassiter hiring Shawn and Gus on his own against protocol... that's love.
--The look Shawn gives Lassie when Lassie talks about "shooting him in the face"... PRICELESS!
--Apparently Shawn has developed the same feelings and desires as Lassie

("Transference"... is that what they call it these days?)
--AND Shawn looks at the town as something magical that means something to Lassiter

--Shawn also gives this look to Gus when Lassie is hugging Hank that is just a special little smile...
--And, of course, the exchange about Shawn calling Lassie "Binky" ever again... and the smiles both of them have... something special going on there.
I'm all the more convinced Kell is a closet Shassie fan (and I'm trying to figure out if Berger though I had a typo, isn't familiar with the term "Shassie", or purposefully misunderstood my question...)
Okay... now I'm finished... over an hour after I started...