Compare Orsino and Olivia, and tell how their attitudes about strong emotions are similar or different?
Duke Orsino begins the Shakespeare's Twelfth Night pining for Lady Olivia, who will not let him woo her because she is in mourning for her brother. For her part, Olivia's grief is quickly put on a back burner in favor of romance the moment she meets Viola disguised as Cesario. So one way in which these characters can be shown to be similar in how they experience strong emotions is how quickly and deeply they fall in love. Each of them have had very limited encounters with the objects of their affections but can still monologue about that affection at length. They are both prone to pining.
They also both refuse to stop pursuing their suit (i.e., wooing their crush) even in the face of repeated rebuttal. Orsino is not allowed to visit Olivia so he's sneaky and sends Cesario in his stead. Olivia is also sneaky in professing her love, sending her ring after Cesario and pretending that it his own that he left behind as a message of intent.
Orsino and Olivia are the alike in that both of them are playing a role of emotion that has been, at least in part, scripted for them by others. Orsino is playing the role of the courtly lover, longing from afar. Olivia is playing the perfect mourner, scheduling her time of weeping. In this both of them experience emotion, but almost for its own sake, and they seem to act as if they can manipulate emotion.
They are, however, fairly different in some aspects of their emotions. The most obvious way is that Olivia is blindsided by desire, so much so that she seems knocked off balance. She openly desires Viola (in disguise). Orsino, by contrast, proposes to Viola, but never really seems consumed by desire the way Olivia is.