You weren't just looking for reassurance though or asking to be on the safe side, you asked because you felt something was off. And your earlier posts indicated that you were worried about receiving a disclosure.
I'm sure it was a huge relief to realise there was nothing to disclose! Of course it would be.
It might be that you're just a little cautious having been single for so long, he was a little over enthusiastic at the start and actually there's nothing to worry about.
It might be that they've said nothing to disclose and you're feeling so much relief and (unnecessary) guilt that you're erasing or minimising your previous concerns as a result.
It might be that he realises you were concerned and has just pulled his mask up a bit higher for now.
No one can know for sure.
But you can't be upset that asking triggered a valid legal process that is now being carried out because that was the process you entered into by asking.
When we made the Sarah's Law enquiry, we were informed of the whole process before we started to make sure we were happy to proceed and warned it would uncover any skeletons in our own closets. Because the police didn't know us either!
It's not personal.