Well, you did lie to her and treat her like a child, but she needs that. Until she respects your need to be at places with her on time, you're going to have to trick her like that. I don't see this ending well.

you just treated her like the narcissist she is

Just hang in there. Wives totally let themselves go after a couple years of marriage.

I don't see the problem: when she takes longer than you both agreed to leave then leave alone nd do whatever you planned. It's not like couples are glued together. You both have a life - live it.

Time for a new wife. This one doesn't seem to understand that "fashionably late" is passe!

It's important to remember that in relationships it's not you vs them its both of you versus the problem. Now go talk to your partner and get your shit figured out.

I lie to my hubby and work about arrival times all the time because neither understands getting me there in time.