Its nice that you guys are going through your 'serious' phase...but i dont really see where this will end. I mean, it's very REAL - Erin's made bad decisions, she's CLEARLY unwell, and nothing short of SERIOUS outside intervention will get her the help she needs - but after beating up the nice/psycho guy, what next?
Plus, it's kinda true what people have been saying....i'd say trying to seduce a guy after being an ass to him, then getting the BOTH of you beaten up because of your own selfish wants, merits some sort of retribution (although if the guy was anywhere sane himself he would've just left her in her swill...)