Have a conversation with her. If she's scared to talk to you fearing how you'll react to her, maybe she couldn't bring herself to bring that up with you. You're willing to end a marriage for that comment to her sister, so attacking your physical appearance to your face would have been even worse? Ask her about it in a non-confrontational way. if this is ALL she did wrong, maybe see how you can both change to fix your relationship IF it's even worth fixing for you. But heck, I get grossed out by some things too, and at least she isn't cheating (would be a deal breaker for me) I've seen guys drop females after they had kids because they "let themselves go" so if men expect a certain visual standard from us, why can't they work on themselves too? I don't think I'd wanna touch you if you were super hairy either. Deffo wouldn't wanna put my mouth on your chest. Can't do the whole hair in my mouth thing. Nope!

Though you may feel hurt overhearing your wife’s comment, it’s not really a good cause in itself to throw away a relationship. There are much worse things she could have said. Obviously you and your wife are overdue for a sit down and calm but honest conversation about your expectations for the relationship. It’s not about winning points on each other it ultimately about understanding and compromise. There are less painful ways to remove hair than a wax. Phillips and other companies make electric shavers for body grooming - They are effective and painless (unless you are clumsy) and it’s a one time cost. Most areas you can reach yourself, some areas like your back you will either need wife to help with or pay to have it done if that particular area is an issue. By the way baby oil with aloe afterwards is good for preventing or reducing the next day itch.

I'd like to humbly suggest maybe she's too humiliated by her own shallowness to admit the truth to you simply because your opinion of her matters. I mean, unless it's a last straw situation, talk to her.