"That rather depends on the lady," he said carefully. "And on yourself. Would such a thing frighten her? Would it be better to move slowly? I do not have the answers to these questions, but they are ones that you should know. If you truly are meant to be, then there is no need to hurry. Things will fall into place."
He looked at him for a moment, thoughtfully.
"Have you considered, perhaps, a promise ring instead? It tells of your commitment but is not such a drastic measure."