Half assed theory time
Looking at the different sides, specifically Roman and Remus. Their color schemes are complimentary colors.
Blue and orange are complimentary colors, seeing as you stated that the orange aide would be apart of that arc most likely
But who else has blue as part of their color scheme? Patton
What two sides have and do repress their emotions? Patton and Logan. The two blue sides
What if the orange aide has something to do with that? Self-indulgence, Unconstraint or something of the sort. Probably not right in the slightest on the name
While Remus shows much of this, it's not his very being, he's intrusive thoughts and not complete Unconstraint.
Unconstraint or something of the sort, would be more on the same side as Remus, but more a flow of all thoughts, not just intrusive ones. Not necessarily bad, unless in extreme excess (Severe ADHD, etc). A flow of all thoughts, no matter how emotional it could make Thomas. And again, not like Remus. Unconstraint would be less scaring him with bloody, sexual images and more scaring him with his own emotions.
Excessive anger, sadness, happiness, etc.
This probably isn't right, but it's just an idea I thought of at like 11PM
