Reverse psychology meaning him placing you the highest on your scum list is more than likely you being his strongest Town read ironically - does that make sense or no
With Orca, due to their history and familiarity, their play as scummates would have to be more subtle so Orca being in the green would be too obvious, since they're already automatically linked together in the games they've played
It's just a different dynamic, so I think he's placing Orca in his town reads as an attempt to make it seem as if Orca is buddies with him, not to clear him as scum