I agree, during Dwayne's route it seems to me that he likes when MC is assertive or forward with him. Dwayne seems to love when MC teases him, and there have been many instances in the few days we have with Dwayne where I think that perhaps he is more submissive (like Spencer). It would be nice to see!
(For example, in part of his route MC is assertive to Dwayne and Dwayne calls MC 'sir' in return; Dwayne then gets all flustered and seems to like the interaction a bit too much lol.)