Blue I'm not sure what could be causing this. I know it must be hard to watch. Gathering all the info you have said about your husband on other threads he has never had this problem before. He makes big decisions every day with his job right? So I'm sure his inability to decide which ice cream to take home is very much out of character. It could be that he was in the midst of a panic attack at that time, and couldn't concentrate.....maybe he didn't want to tell you.....didn't want you to worry? I know he tries to be strong. Has any other problems like this come up since then?
I think it's awesome that you want to support him. I'm glad that your doctors have stressed the importance of you two being a team....and getting him thru the tough times. I can't say enough how important my husband's support has been for me in my recovery. Without it....I would not have gotten as far as I have....that I'm positive. He is very lucky to have a wife like you!
Congrats to your husband....I know he's doing very well and has gathered many months of clean time....almost a year right? I also know how good he is with you....how caring...and respectful....honest....those are all signs of recovery. There may be bumps in the road....so far there hasn't been any.....but I think your desire to know more and more about addiction and ways to help him along the road will aid in his success.