Billy brought up a very important piece:
The shunning. A little fling with you is not harmless to him. Getting involved with you could totally destroy life as he knows it. He is probably trying to decide if you are worth it.
In his mind, he is risking his relationship with his God, his family, and his "friends".
If he "falls into temptation", he can get shunned. No contact ar all with any of his JW family or friends EVER.
Are you serious enough about that young man to be willing to replace all of that?
If not, leave him alone, he will always blame you for his loss.