Chastity and orgasm denial discussion

I had my husband locked up in his nasty Iron Maiden for the whole weekend because he was caught pleasuring himself in the shower. On Monday morning I let him out, and he said he was quite sore. For work, I put him into a clear plastic CB6000, and everything seemed okay. He took a shower when he returned home and didn’t show any signs of an erection. At the time, it wasn’t a big deal to me. This morning though, I decided to have some fun teasing him. I unlocked him and began rubbing his cock head and balls with my very long nails, but nothing happened. I even pushed one nail down into his wee hole, which usually gets him hard as an iron. Still no reaction at all. He apologized and looked quite sheepish staring at the floor. He mentioned he was still sore from the weekend and doesn’t have fond memories of the pain he endured. I’m wondering if I went too far and that he is now genuinely afraid of getting an erection.