She changed her passwords.
This is the kind of thing that happens, and your paranoia is simply skyrocketing. This goes without saying that you both need your own privacy, so you shouldn’t take this into account if it’s not backed up by other issues, too, such as a lack of intimacy or interest in one another and constant fighting.
However, one of the signs your wife is cheating relies on the fact that she changed all her passwords, especially if it happens all of a sudden. If suddenly your wife became more adamant about her privacy, it might be due to the fact that she’s up to something.
You discovered that your wife lies about small things.
A small lie over there and another one over here might take her a long way, especially if she’s hiding something. Because here’s the thing: when we have something to hide, we’re trying to forget that we are lying.
I think that at an unconscious level, we’re practicing lying in all the other small things that are oftentimes completely unrelated to the big lie we’re carrying with us. If she’s being untruthful with those $50 she spent last Friday or if she said that she went to the gym but you know that her subscription has expired, then you might want to ask yourself, What’s up?