@Flirtycpl,
Two wrongs never make a "right", so no free pass....sorry.
No, you cannot trust your wife. There is a line, it is imaginary and most married people can see it. There are a few, though, that are incapable of seeing the line and therefore will never have a problem crossing it. Your wife obviously suffers from a truth disorder. There's help for that, it's counseling. Wouldn't hurt for both of you to go talk to a professional.