I'm with labug on this one. Jealousy can be a great tool to get a little more attention and intill the fear of loss in your H. It shows him you're taking yourslf out of he running as you being a back-up plan, causing him to pursue you instead. But there are better ways to show this. And it can backfire and push him away if his efforts to get your attention are ignored for the new emotional affair.
I would only reccomend this as a do something else last resort tool when when all efforts have failed or you chased him too much. I have had success with this with my WAW in her EA showing her I didn't need her after chasing, that I could move on like that and have my "just friends", and creating a little attraction for what she can't have. But I have a little more experience with this from the dating scene and know when to push her away and when to pull her closer. And that can only happen afte you've 180d enough to show him someone he would want to have but can't. The main thing with jealousy is you want to remain a challenge but not completely out of reach. It's an experment and watch thing and not a "all out in your face" statement.
Don't mistake it, once you start calling the new guy to talk about issues in your M or meeting at times you don't want your H to know about.... it's an AFFAIR. You can keep your male friends and go out to dinner but don't lose focus of your reasons to DR.
