With differing expectations of sexual mores, the term "dating" can imply romantic activity whereas simply using "friend" would likely avoid implying such intimacy.
It is essentially equivalent to the term "sweetheart", which has also been used as a term of endearment.
So, if you choose not to get coffee or watch a movie with the opposite sex, then whatever.
The ultimate purpose of marriage is sanctification (becoming like God).
While film cameras often required a dark room to process negatives, modern camera phones can record sexually explicit images and videos in privacy.