Hey, sorry for all the drama. I would suggest to just bring it up in a conversation. But with doing that make sure that its conversational, not confrontational. Then explain that in marriages, there needs to be compromise. And since she is doing it, then it only makes sense for you to have the same release on occasion. I would suggest possible try sticking to watching porn together. Maybe let her know that youre willing to stick to self gradification 2 times a week or something....
See how that goes... Maube try mastubating with her. One night when you wake up, and you know shes doing it... instead of just being like "you are arent you!!" instead join in on the fun. See where that takes you. Hope it helps....