It's hard for me to tell: has Jeph completely reverted to his old style, or is this 90% old, 10% new?
Also, I've always been of the opinion that Marten and co. have been overreacting, and Sven is only a bit of a jerk, not the total asshole they believe him to be (at least, before he declared his love for Faye, which struck me as just creepy, weird, and out of character, so much so that I thought it was just a deadpan joke).
I mean, he hooked up with another girl while he was hooking up with Faye. Unfortunately, Faye had asked him not to hook up with anybody else. Literally the exact same thing happened to me a few years ago. I was sad for like a day, forgave the girl, and still think she was one of the most awesome people I've known. Other than that, there's nothing wrong with his being promiscuous, and he also seems very self-aware. Also, I thought he really showed his good side on his "date" with Hannelore.
Apparently, upon looking at his Wiki, he had cheated on one of girls he was "seeing", but people change, which he seems to have done. All I'm saying is that he's a more complex character than Marten describes him.