My wife does not participate in any way, but I do put my diapers on with her present just about every night. At first I was a bit embarrassed, but now it is part of the nightly routine. Since I wear cloth, I lay them out on the bed, fold them and pin them on with her next to me. I will often get diapered and then leave the room to watch TV or whatever.
I'm really not sure what she thinks about this but I do know that she thinks that wearing wet diapers are gross.