Anonymous wrote:We both know we dated other people before we got together. No need for details beyond "I have been tested recently and don't have std's."
+1 We never talked about it when we were dating and maybe some talk about exes has come up in the context of funny stories or vacation planning (you went to this city already? when? oh, okay), but not in a "tell me about your sex life with so and so, were they better/worse than me, how many times, what positions??!" kind of way. Especially once you're married, this level of interrogating your partner's past relationships looks like spoiling for a fight to me, from either the husband or wife.
If OP's question is more about whether people brag about their own ONS in the past by sharing them with their spouse, I think that's strange in a different way. Red flags all around!