OK, I'm all set again. It looks like every now and then the wallet tries to sync up with that other chain though. Why is that? Just out of curiosity.
It's because you deleted your peers.dat file!
I deleted it and now it's also trying to sync to the other chain.
I now restored the old peer.dat file and everything is working again, sorry guys but removing the peers.dat file was the wrong move for me

edit: However I was on the correct chain the whole time , so maybe there is another issue.