Dont tell her to hook up with other guys.lol

Watch her actions and listen to her words, let her run the tests just pay attention to how you react. As long as you keep her interest level high and do the right things as you need to be in yourself so wont leave.

Ive never heard a woman say,

"I left him because he was affectionate, romantic, respectful and I had a high interest level in him because he was a challenge, he was self controlling and he was confident"

That never happens as boyfriend girl friend or in divorce court. So, if something is missing, its one of these things.