What you just said "I guess I don't really trust him on that."...was almost the EXACT phrasing I used that seems to have popped my LDH out of his shell.
When I told him "I just don't trust you to do what you say you will because you simply never do" you'd have thought I dropped a ton of bricks on him. Trust is a BIG deal to my H and to hear me say "I don't trust you" really rattled him...more than me saying "I won't stay in a R like this indefinitely."