The wife has spoken.
"Are you not shaving this week?"
"Maybe, what do you think? Does it look good or bad?"
"Just OK" This is usually code for 'What you are doing seems a bit idiotic/stupid/odd to me but as no one will get hurt in the process I'll not make an issue of it, not right now at any rate'.
She provided one more comment before the conversation turned to other things:
"It makes you look old" (with an emphasis placed on the old).
Looks like two hints to get rid of it.