Ah, so Sven DOES blame himself for what happened. Interesting.
I find it easier to sympathize with Sven than most people here, I think. Having a history of being something of a lothario myself and having those habits ruin something special when I finally found it, I know how he feels. However, even though I have felt the same self-contempt, I didn't wallow in it as long as he has. Sure it is still there to some degree, but I have been trying to change and grow from the experience rather than just feeling sorry for myself.
I can sympathize, but the boy needs to "sack up" as they say.