Yes but super carefully, and sometimes with verification.

Hard to say. It would depend on what issue(s) and how much respect and trust was shared.

My bottom line is trust but verify.

Not nearly as much as I used to be. When I was younger, I thought in terms of "what I want in a man/relationship". Now, I find it's much more a case of "what I DON'T want". Probably why I will remain single. That is in no way meant to be taken as a complaint. All I mean is that having given the benefit of the doubt too many times has caused my heart to have built up a fairly significant layer of scar tissue. I doubt I'll be in another romantic relationship, and I'm no longer looking for it. I've got other stuff going on.