What can i do to get this girl.?

I am a nice and gentle guy so this is this girl i love since my secondary school day but i never tell her,now that we have graduated from school i decide to express my feelings for her so after tell her the only problem we may be having is the religion stuff,they don't allow someone who is not from there church to marry their women except tin men can marry from outside the church and bring the lady to their church.What can i do because i really love this girl