Got stopped at customs, had my passport and all my paperwork taken from me and put in a side area for half an hour. Eventually 4 police came back and my German partner was allowed to talk to them and she persuaded them to let me in.
There was another guy that got stopped and he wasn't so lucky.
Yup. With my German partner.
Just aware that there's no hard and fast rule rn so it's probably up to the discretion of whoever looks at my passport.