I know that Jimmy of S3 LnC confesses to having a crush on Lois (Just Say Noah), but I think that's the only time we see it (unless you count UW). So, it's possible, he's being resentful and faking his friendship during S1 with Clark, and his crushes on Lucy and Cat. One little nitpicking thing, LnC's Jimmy always called Clark "CK". I constantly forgetting that too, and having to do Find/Replaces to change it out.
This sounds more like the relationship between Clark and Jimmy of the early comics, especially with Jimmy's red hair. Didn't they share an apartment at one time? I don't recall Perry ever telling Jimmy "why can't you be more like Clark" on the show, but I could see it happening in the comics. Also, LnC's Perry didn't mind being called "Chief" but the one in the comics did. I think this story would work better in the new section (forum) at the bottom of the page for 'Superman in Other Canon'.
If I set this story in that comics canon, I could totally see it working. There were times in the comics canon when Clark and Jimmy had falling outs, I think even to the point where Jimmy tried to kill Clark once or twice (when he'd gone bad). It makes me wonder, though, what Jimmy did to tip his hand to Clark for him to know that Jimmy was planning on doing something to him. It must have been when he left that morning and saw Jimmy in the van.
Of course, if Clark knows Jimmy's trying to off him, it seems a bit vindictive to invite him to move in with him, as if he's trying to have Jimmy kill himself with the poisoned water, so let's hope that Clark removes the poisoned filter. Very noir-esque. I've never heard of pipes in an apartment building only going to one apartment from the basement, so if Jimmy poisoned Clark, he probably poisoned everyone else in Clark's building as well. Thus, Jimmy is in serious need of mental help.
The one paragraph that didn't sound like Clark at all, was this one:
Clark was too politically correct to drink out of the tap. No, bottled water only for him - another thing he hated about Clark. Whatever the latest fad, he was on it. Not out of a core belief, but because he had to do the "in thing" always. Clark had no integrity and followed the crowd. Another zombie of the social media age that was taking over everything.
LnC's Clark being a farmboy was a strong believer of drinking out of the tap. Also, being Superman it wasn't like tap water could ever hurt him, no matter what crud was in it, so I couldn't ever see him as a bottled water guy only. The only reason I could see Jimmy thinking that Clark was a total trend-follower is that he noticed that Clark wants to blend in with everyone else, and does so by following all the current trends. Again, this doesn't sound like LnC Clark, but maybe one of the Clarks in other canons was like this.
