Do you have enough information to know that you could not marry this man?
Are you considering biblical characteristics in that decision?
You probably won’t know at this stage how things are going to ultimately turn out regarding marriage (that’s why you date), so you need not communicate that right away.
But you should know what you’re trying to find out and what your intentions are — that is what you, as the man, must be clear about.
In the end, there is no formula and no rote substitute for intellectually honest Christians seeking to care well for one another and to faithfully apply Scripture to infinitely varied relational circumstances.
So with all that said, let’s consider how the principle of caring for one another well in the early stages of a relationship might look.