OK, looks like we all agree to keep your hobby!
Now, I shall tell you my uncle's story. He has been crochetting since he learned in as a boy from his scout troop (I have no clue which kind of scout troop). Since he is now over 60 years old, that's a long time. He is very good at it, should be after 50 years but he didn't want to hear the comments that his fellow manly-men would say. (He's one of those outdoor type. Picture a over 6 ft tall bear of a man.) So, he also took up knotting rope and does that now and again for wall art and usable stuff like a trivet. Anyway, since he does both and to an untrained eye they use the same type of skill, he calls his hobby knotwork. Here's what knotwork looks like for any who don't know: http://www.seacoastdetails.com/knotwork.html
He makes those flat ones as trivets. (No, that's not his site. That just shows some of the stuff I've seen him make.) None of his buddy say a thing and his wife doesn't mind as it keeps him busy. His daughter didn't even know the truth until lately. Everyone just says he does knotwork and leaves it at that. So there you go: the way my uncle managed to crochet through the 50s, 60s, 70s, 80s and 90s without hearing crap about it not being "manly" from those who have a "woman's place is in the kitchen" view.
Anyway, if your wife seems to be embarrassed for some reason about it, which I guess some who don't craft are, maybe try your hand at knotwork, do a few pieces now and again and call everything using yarn or rope knotwork. There you go.