The Mormon church is certainly a time consuming church. I'm not going to hit the town with single ladies and couples find it awkward just inviting you over. In the end people have to make their own decisions. Make them feel special.
There's a ton of crazy in what we were taught all our lives. If He can answer prayers to help you find missing car keys, He surely can help you understand who it is that you should marry. If yes, do you promise to not proselytize to me and let me drink a simple cup of coffee in my own home. So do you just never give anything back to SOs in terms of time or small gestures. I don't think we are going to end up being friends but I'll get over that. Should one belief system or lack of one take priority and why. I completely relate to all you've written; many of us have come to see Mormonism for what it is, and the severe damage it does to human brains. God knows the big picture. Public displays of affection PDA show a lack of self-control.
When out on a date with a Mormon guy or girl, be very decent, courteous, and well-mannered. Whatever your leaders have said, consider their counsel, give it the weight it deserves, then counsel with your Heavenly Father about your own situation. Please wait a few minutes and refresh this page. Too bad she couldn't handle the guilt and remorse. Her goal is to make you mormon. I respect all doctors so much, they go through hell to be where they are and put up with so much stuff at their work too. If she can't or won't consider that the church is a lie, you need to move on because this relationship can't go anywhere.
That said, Mormons have learned to have fun without alcohol and often have to wait until drinkers are well-oiled and loosened up to join in the dopey-ness. Love the man you are going to marry- warts and all he loves yours as well. There are such things as perfect loving families though. She's likely openly telling her family that it's okay he's not Mormon because she's going to get him baptized. I'm a nevermo, but I married a then TBM girl, so maybe my perspective will be of help to you.