Imagine: Roman gets bruised whenever Thomas lets an offhanded comment get to him. These bruises, usually the size of a dime, hurt as he has collected hundreds over his creation. Some disappear but the majority of them stay.
The really hurtful comments cause internal bruising. He still has some internal bruises and these make walking and moving around difficult and painful. He hasn’t told any of the sides or Thomas about this and just covers them up with an illusion.
The only way to get rid of the bruises is for the others to compliment him and just tell him how much they love him. This makes his self-esteem (and ego) repair themselves.
That hasn’t happened in a while.