There were still all those wesen predators that Nick and Juliette ran away from there. I think it's safe to say he never wanted to see that place again. He doesn't have any fond memories from there.
Also, Nick was being dragged there if FitC's theory is correct. Considering that, he may have thought that he wouldn't be able to return this time.
Also, Nick was being dragged there if FitC's theory is correct. Considering that, he may have thought that he wouldn't be able to return this time.