[Jack Noir? Walk away from a fight he probably won't win?
You bet.
He doesn't need telling twice -- it doesn't matter that an onlooker would call him a coward. He probably is a coward, but he's a coward who values his life. The sword disappears from his hand and reappears through his chest as his wings flap to carry him away, still bleeding.
There's a nice trail of blood to show where he's running, but he doubts it matters. If she really wanted him dead, it would've been over right then.
He would never understand those Prospitian folk. What kind of person gives up an opportunity like that?]