The mildest form of sexual touching leads inexorably down a path that ends in bed. When God protected Sarah from any advances from Abimelech it was not that he stopped short of intercourse but had his way with her short of that. Courtship protects the couple from sexual immorality by keeping the couple in the context of family, under the oversight of parents. The concept of chaperoned encounters is the only one consistent with the principles of parental authority and protection from sexual impurity. Absolute privacy not necessary or safe.
Meetings can occur under the watchful eye and within earshot of the guardian father.
Any conversations too intimate for this setting are too intimate for this stage of the relationship. Exclusive Affection for One Partner 'Cherish' is the word that I use to describe all these feelings that I have hiding here for you inside. Breaking up is hard to do. And it is a natural part of the dating scene. If you get tired of the girl you have, trade her in for another.