Originally Posted by
Learn2Live 
IMO what you are saying is entirely acceptable, and wise. It's been my experience that people who tell me I need to trust them are people who are trying to get something from me that they want. Funny how no one has ever said this to me except for drunks and drug addicts who have lied to and cheated on me. I also have been in your situation where they say I need to trust them but do nothing differently to show they are trustworthy.
Same here. My ex was adamant that I trust him, he even make sure to make his point to our couples therapist.
One night, he went on and on about how I need to trust him, that he wasn't cheating on me and that it was all in my head.
I caught him cheating 4 days later.
I always believed trust could be build, and it can, only when the person who betrayed the trust does a spiritual 180. And that takes YEARS and a lot of willingness