The problem is that you can't hide it forever. If we could hide it, I'd be hiding it... lol It's just best to be upfront with it. The more comfortable you are with her knowing that you have the affliction, the less it's going to weigh on you, the less anxiety you're going to feel about it, the less you will stutter (well, that's the hope). I've been married to my wife for nearly 18 years and I still stutter around her. I still stutter every day despite doing my level best to hide it.