FG,go with your gut. Your IC is supposed to help you, not predict the future.
IMO don't even try an R talk with your H, it will only push his buttons and escalate to another big fight.
Your H has been talking about letters, moving, calling for months/years. Until his actions prove different there is no reason to believe a single word he utters.
In the meantime, work on the pieces of your life that will move you forward. (((((FG)))))
Live your life while you are still living. Riding the trail less traveled.