He should have told me.

So should the young man himself; of course he should.

I consider it a most dishonourable thing to come into a man's house like a treacherous I-don't-know-what.' 'But he was afraid to tell you, and so should I have been.

He loved me too well to like to run the risk.

And as to speaking of his friends on his first visit, I don't see why he should have done so at all.