Personally I wouldn't meet her. Not my business to. I wouldn't give her the time of day.
This is me, too. Never met the OW, despite having been told by my late friend who met her that she thought we were "old friends who'd known each other forever" based on her casual knowledge of me and my life. Yikes! I did respond to at least one of her gross FB comments once on xH's status, and then PM'ed her after BD to tell her to enjoy the jewelry I bought her, especially since it was my birthstone he'd gifted, not hers.
Cheap shot. I regret even acknowledging she was a person, because I've learned more about how there's power in not giving them the attention.
I want to caution you, V - you're a powerful manifester! If you're picturing scenarios where you will meet her, guaranteed, you will find yourself face to face. But there are many of us here who have never met these people (even some with kids!), and I have known many divorced couples who co-parent without involving any third parties. It's all business. It's a matter of no longer waiting for what the MLCer is going to throw at you next, but starting to form the life you want, and then their crap, whatever comes up, gets rejected or incorporated based more on your needs than on their demands. 2012, I waited with baited breath for the next email or visit from xH, letting it dictate my day/mood/next step. Now I only respond when it suits me, and usually leave him hanging with the last email. His other antics are irrelevant. I know yours is at that phase where he pushes when it gets too quiet, but honestly, you'll look back on this time someday and realize how much more power you had to ignore him than it felt like. Pickups, dropoffs, legal. That's the only contact you really need with him now.