My gf is a German and its far easier for me to live in Belgium than for her to live in the US. Came to Brussels as a grad student and now I work here. Belgium probably has one of the most liberal immigration policies in Europe, so I have the right to live and work in Belgium indefinitely thanks to 'legal cohabitation,' which is actually just gay marriage/family reunification for all who have had a close relationship for over a year and can prove it. I just don't have the right to live or work anywhere else in Europe... so for now its Belgium unless I find an employer somewhere else who wants to sponsor my work visa!
Where´s your g/f from?