I'm a US resident, but my girlfriend is a Canadian citizen living in BC. Just thinking ahead a bit. Would I be able to hunt if we were married and or would I have to live there to do so?
You would have to live here. If your girlfriend lives here and you dont, she could get a "permit to accompany" which would allow her to take you out, but only in one region and only for certain species.
If she lives with you out of province, then no you could not hunt here.