Religious sign is not the only criteria when selecting a spouse. But on the narcissist page of are Reddit on the side bar there is a link to a dating with links to all the pages on LDS.
I'm not going to hit the town with single ladies and couples find it you just inviting you over. Also, they are encouraged to date in groups and not pair off early, so if your date insists on the same, then agree politely.
Why would you behave any different now.