Let me answer your question about how I would react if a man I am married to comes home and tells me that in the distant past he had and enjoyed sex with another man.

I would update the database I have in my brain with the new info deleting the original entry that classified him as completely straight and entering mostly straight but with possible bisexual leanings and. A record of some experimentation in the area of same sex attractions.

I would also give myself credit for being approachable enough.

If I can think of any other reaction later, I will post again.

The issue again is that you consider your idiosyncrasies standard worldview. People in reality differ quite widely.