Continuity mistake: When Paul spits on the left side of Dandy's face you see Dandy get up and wipe the right side of his face. Also it appears the blood in his nose magically disappears between shots. (00:03:15)
Continuity mistake: When Elsa reveals her prosthetic legs to Dot and Bette, they are two inches below her kneecaps, when in prior episodes they were just beneath.
Answer: He flew back a few times to be with her as mentioned in their fight.