To wrap up one loose end, Harley and Catwoman exacted revenge on the man who brutally raped Pam in the bathroom a few weeks after.  They found him on a street corner, so they overpowered him, threw him into an alley and gave him a taste of his own medicine.  Neither of them felt anything after because they felt like they were doing it to help their stepson.  

They have a pretty twisted mindset when it comes to revenge…