a woman's #1 mistake:

"If you really loved me, you'd..."

That's it. In a nutshell. We assume that love is the answer, and that The One will always know exactly how I am feeling, why I feel this way, and how to fix it. He will take the time to do everything in his power to make me happy. In fact, he will live for my happiness.

Conversely, someone who does not meet these criteria is therefore not The One, doesn't really love me, doesn't truly appreciate me in the way I deserve and therefore I am entitled to act out.

He's not a mind reader. He has no idea of the things you've "let slide". He believes exactly what you tell him: that everything's fine. Because he loves and trusts you.