I think the trick would be to balance out the angst with some hope.
He hopes to cure himself but it's the turmoil over not being able to that has been seemingly spotlighted in the two films to date.
Mark's Banner, in the year since TIH, seems to have come to terms with what he is now. Even if he doesn't want to embrace it like Tony. His line in the lab to Tony and the group about "focusing on helping others" after "the other guy spit out" seems to indicate he's at a type of peace now.