Lost on how to save my marriage!

[Cadet]

How should I view yesterday events?

I think you said it well.

We also had sex. I don't take this as anything more than lust at this point.

Have NO EXPECTATIONS about these events.
She is just as confused as you are.

I think you should read the book at this point and then ALL the homework.
Then we can regroup and see what you should DO.
And understand that sometimes DOING NOTHING is really doing something.
Right now listen to your DB coach and stay the course.