Sven is being set up as a straw man. He's not an asshole, frankly, and Dora's being - wait for it - a total bitch.
I'm on his side, and I don't think he's got one thing to apologize for. He didn't hurt Faye, Faye hurt herself. Sven is right, frankly, Dora's acting like a child, and so is Faye.