I thought it was interesting how she said to "lean into" what he finds attractive about you, and behave that way in an exaggerated manner. If you're sultry, act more sultry. If you're elegant, act more elegant. If you're cute, act cuter.
It had never even occured to me to think about what he found attractive. Or that there was anything about me, in particular, that he might find attractive. I was always trying to figure out why he married me, despite my being generically unnattractive.
Complete reframe. Assume he thinks you're attractive... start from there.