My dear faithful LDS aunt married a good non-member man. Fifty years later, not one of her 3 children, her dozen grandchildren or her numerous great grandchildren is an active member of the LDS church.
Public displays of affection PDA show a lack of self-control. It is also considered disrespectful to others, as they may be uncomfortable because of your open displays.
There are other ways. Mormons think when you die, based on if you were a good person cough cough atheists you go to spirit "paradise" where they will teach you the gospel.
Love the man you are going to marry- warts and all he loves yours as well.