I don't know if this will help you...but when I was confronting my H about issues I used this line on him and it might work with this trust issue thingie too (technical term there). I told my H that what he was doing was sabotaging our marriage...and he had control over that, not me.
So you might rephrase it like this perhaps when he says this...."I know its going to be hard for you to trust me and I know you might never". (Your Response)"Your right I might not ever...because your behavior is intentionally or unintentionally telling me I shouldn't....hiding things from me, not allowing me to see bills, phone records etc sabotages trust after an affair, whether those items were part of the affair or not. Keeping those things from me isn't "privacy" it's "secrecy", we are married...and there is NO reason I should not have full access to these things....it's only wise anyway should anything ever happen to you medically and I have to pay the bills. Besides that if you truly want me to trust you then you have to provide me with the tools to build that trust...if you choose not to, then YOU choose not to regain my trust."
Obviously...you would tweak that to fit you. My husband though has a really tough time fighting against logic.
