“Lois?” the voice spoke again, and this time Lois turned around in her chair,... a disapproving look fixed firmly on his face.
Lois should have used an alias at the school or ignored Kent completely at this point. She could said "Excuse me but I don't know you!" Kent might have given up ( Iknow a pair of sisters that are now early 40s and mid twenties and ten years ago you would have though they were twins)
I doubt Kent would have risked a major scene and if he tried to confront her later, well and good someone would hear and it would mean her main suspects would be more likely to trust her.
[Lois] was dressed in the classic “little black dress,” though hers had a slightly devious slit up the side.
...
“Lois you look beautiful in that dress,”
...
"[Kent] spent a few too many seconds appraising you in that scrap of fabric you’re passing off as a dress. Seems like he’s only human.”
...
Every few seconds [Kent's] gaze would flicker back to Lois,
Notice it is not "Lois, I'm concerned that your choice of attire is sending your date the wrong message..."
Sorry but this is not platonic concern, Claude nailed it
I think your Mr. Kent was experiencing the green glare of jealousy.
