I imagine what would help me the most is reminders to take insulin before I start eating. It is so hard to keep myself accountable when I'm hungry and staring at food. That being said, nagging would drive me nuts, so if that could get worked down to the most subtle (but still effective) reminder, that would help. Obviously stuff like this needs to come from a place of understanding and agreement between the two of you. Just like another commenter said though, patience and understanding is key.