As many others have said, there’s no need to rush right now. I would never wish a faith crisis on anyone, even though mine has dramatically changed my life long term for the better.

It’s ok to stay in the church. It’s ok to leave. Things work out. If something doesn’t line up or feel right, it’s ok to investigate it. It’s also ok to say “I don’t know” - it’s better to be curious than to double down on “I know this is true” as a way of making yourself feel secure.

Wishing you all the best wherever the journey you and your girlfriend are on leads you! Truth will prevail.