DH and I have gone months without DTD as his libido vanished when he was on ADs, he also has ED.
He came off the ADs fairly recently and we're back in business.
I've been trying to spice things up a bit, recently doing a bit of shopping at LoveHoney. 
I was tied up last night, with a blindfold on. It wasn't on properly and I could see out a bit at the bottom. I saw DH hold his tablet up when I was at my most exposed and undignified and I thought WTF? He was obviously taking a photo but he didn't tell me.
I think if I'm going to engage in something like that I need to have absolute trust in him. 
I brought the topic up this afternoon and he said he'd taken a picture but I would have prefer him to volunteer the information.
I'm not sure if I'm overreacting?