You have said that before and if that is your choice, there's not a damn thing wrong with your thinking.
When I read your last post though, my thought were the same as I mentioned to you a while back. It seems to me you are accepting the fact that what you see is what you get. It will be up to you to make the change that you need. You may need to take a risk. It is telling that you said things started down this path before marriage. My guess is that you wondered whether or not you should have gone through with the marriage at that time. I heard that from my ex. So here you are. You go in circles when speaking about this stuff. And it always seems to come back to the fact that you really are unhappy in this marriage - with or without the trust issues. The choice is yours.
I am not sure what to do. I do have ideas (I do have ideas), but you have to get this guy to move and that means you will have to make the first move. You're young and if you just hang on, life will pass you by.