Knight finally did tell me how he felt when I gave him the device. He said he was upset and insulted and resented that I'd suggested it. He said that instead of building trust that incident destroyed trust.
My response was simple......."well, now you understand how I feel when you don't follow through on your word, don't bother doing little things for me, and can't take the time show me this marriage means something to you." Then I reminded him that I have him two opportunities to veto the idea, and he didn't speak up.