You listed yourself as "Single," and are openly flirting and allowing yourself to be flirted WITH, intentionally, for her to see. I'm not an attorney, but I bet a really good one could make a case for "emotional abuse" and/or "emotional abandonment" of the marital relationship.
I could be wrong.
I also get an impression from you that you are not merely doing this for tactical purposes, but rather a vindictive kind of getting back at her. This isn't high school.
You asked for "any advice or suggestions"; you are always free to do with it what you wish.