Total honesty in a relationship is absolutely b.S.

So is the rubbish spouted about being an open book.
There are plenty of things I did as a teenager and in my early 20's that have no relevance to who I am now I am in my 40's.
Things that won't benefit my partner by knowing.
If my fella comes to me with a new hair cut and it looks like shyt, do I say that?
Of course not, I lie and say it doesn't suit him as much as the previous do.

Absolute candor in a relationship is the quickest way to take the shine off.

Why do people even ask about past exploits if they are just gonna get bent out of shape about the answer.

And no snooping is never justifiable, if you can't believe your partner just by asking you have no business being in a relationship.

Because that's about you not her, and another thing you T has no business telling you to end a relationship, that's not their job. And it's sounds like a very questionable relationship if they are stepping over those boundaries..