I live in New Jersey and he lives in PA where do I need to file?

In PA, you must live here 6 months to file for divorce.  It may be the same in NJ.  I had one case with similar facts and my client lived here for 4 years.  We filed here and she filed there.  The NJ court held that it had to be in NJ because all the assets were there as that was the marital home.  That is not a required result but not an unreasonable one.