KC - I know this is all very tough. Hang in there. There's a difference between letting go of the bike ride and not focusing on it internally vs. externally. You maybe didn't mention the bike ride for a week to him, but internally haven't let it go yet. Why would this bike ride be enjoyable? It's more than likely not going to meet up to your expectations - not sure if it represents a bygone dream for you, or that it's easy to ignore the current situation and get away from it in a make believe world for a while, but ultimately it'd be a bike ride with your husband who has moved in with OW and wants to D. Sounds miserable. As far as the candy, I wouldn't read in to that.
From the contact he does have with you, I agree with AS - sounds like he is just too lazy to get docs himself or do legwork himself, and realizes it's easier to get you to do stuff if he isn't being a jerk about it.
The list of things that you are doing for you sounds great - don't lose focus on yourself by focusing on your H. What made you text him on Saturday, anyhow?
