She came to understand that the world was wide, and many things might have taken him away from his home.
Perhaps the money she had sent reached him safely, but she had put in no address.

It had not seemed right that she should.

It would seem to draw his attention to her, and she felt "the lady" would not like that.

Perhaps they were married by this time, and had gone far away to some charmed land to live.

Perhaps--a great many things.