But what we really want to see is Dwight finally making the strong and possibly regrettable decision to take a legitimate stand against his boss and tormenter Negan, as opposed to his earlier plan to run away from it all.
He doesn’t have much going for him after all that happened recently, at least besides residual anger, so hopefully he’ll realize where that anger should be directed, and that Negan gets most of it.
However, it’s definitely possible that Dwight doesn’t explicitly mean ill will towards Rosita, and that he may want her help for something involving Sherry, just because that might as well be an option.