Fiorella's dirty little secret is that she loves doing revisions. Yes, while everyone else in her RWA chapter is complaining about revisions, she revels in them. It's another chance to improve her manuscript, to get it right.
Of course it helps that the divine Liza hasn't given her a deadline. Fio may revise her opinion of revisions when that occurs, but for now she's wallowing in perfectionism.
Besides, it's exciting to be on the cusp, not quite there, but able to see over the mountain. Sliding down the other side might not be quite as comfortable.